Just because a stock is cheap doesn't mean it's attractive to value investors ... but it can certainly help. Today, Motley Fool Inside Value advisor Joe Magyer shares a company that is a solid buy, one that's worth watching, and one to get rid of as soon as humanly possible.

One to buy
When Joe recommended Procter & Gamble (NYSE: PG) in Income Investor two years ago, he described the consumer-brand behemoth as "a blue chip with a mile-wide moat, a 3% yield, and nearly 33% upside." Since then, the venerable company has lagged the market by more than 45 percentage points. That's only added to Joe's interest.

"They make half the things in your medicine cabinet," he says. "You're going to shave every day, people use diapers every day, they use toilet paper every day. There's no getting around that. P&G focuses on premium-priced brands for everyday needs."

Shares have fallen of late on fears of rising input costs -- let others worry about such short-term concerns, scoffs Joe -- and because the company has become more aggressive on cutting prices. Joe doesn't love the pricing move, but understands the need to maintain market share and brand loyalty in a down economy. "P&G can always return to price increases later, but for right now, they need to focus on keeping those customers locked into their brands."

One to watch
Speaking of price increases, such pricing power is one of the joys of being a member of an industry duopoly. Automatic Data Processing (Nasdaq: ADP) is the country's largest payroll processor, not far ahead of rival Paychex (Nasdaq: PAYX), and leaps and bounds beyond any other player. Joe owns shares of Paychex and likes the company, but he's singling out ADP for its two-edged hedge on inflation.

First, the company provides huge cost savings on its payroll processing to businesses. Since the costs to switch are enormous, it can also muscle through price increases above the rate of inflation. Second, ADP earns interest on the funds it holds, from the time its clients deposit the money until ADP ships it out in the form of paychecks.

"I really like the business model of both of these companies, but they're a bit rich for me at the moment," says Joe. "I own both, but I'm not adding right now."

One to sell
Listen to Joe discuss the outlook for Nokia (NYSE: NOK), and you get the sense he'd rather chew on his iPhone than buy shares of this one-time market leader.

"Apple (Nasdaq: AAPL) and Google (Nasdaq: GOOG) are absolutely eating Nokia's lunch on smartphones," says Joe. "The one thing it had in its favor was that it has its own operating system, which was a differentiator. It was a dinosaur, but it was a differentiator."

So the CEO, who happens to have joined the company from Microsoft (Nasdaq: MSFT), made what Joe considers to be an extremely unappealing decision. Nokia outsourced its operating system to Microsoft, a company with a terrible track record on mobile, and whose system, despite decent reviews, lags far behind Google and Apple on both quality and popularity.

"They've turned themselves into a box-maker," says Joe. "And when the CEO tells all his employees that their situation is like a man standing on a burning oil platform in the middle of the North Sea ... well, I don't see a lot of promise in that business. He was right -- either they stay on the platform (with their old operating system) and face sure death, or they plunge in (with Microsoft) and face likely death. Not a company I want to own."

If nothing else, though, it's worth watching for potential shorting -- or at least entertainment -- purposes. You too can watch these companies with the mere flick of a mouse -- click one of the links below to build your watchlist, new and free from the Fool, to get all the daily numbers and news about the businesses that matter to you. Sign up now and get instant access to "6 Stocks to Watch from David and Tom Gardner," a free report on a handful of companies the Fool's co-founding brothers think you should be watching. The service and the report are free when you click any of the links below:

Google, Microsoft, and Paychex are Motley Fool Inside Value picks. Google is a Motley Fool Rule Breakers selection. Apple is a Motley Fool Stock Advisor recommendation. Automatic Data Processing and Procter & Gamble are Motley Fool Income Investor picks. The Fool has written puts on Apple. Motley Fool Options has recommended a diagonal call position on Microsoft. The Fool owns shares of Apple, Google, Microsoft, and Paychex.

Roger Friedman owns none of the companies mentioned. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.