Ever since August 2011, I've been calling out one or two companies every month that I was putting my own retirement money behind. Over that time, my picks have returned about 27%, beating the S&P 500 -- not including dividends -- by 8 percentage points.

Never, though, have I made an investment that looks as ridiculously silly as this one. By any and all traditional metrics, an investment in Organovo (ONVO -6.36%) is downright stupid. But read below to see why I'll be buying shares when Fool trading rules allow.

Have I lost my mind?
There's no doubt that 3-D printing is a red-hot industry for investors right now. Industry stalwarts 3D Systems (DDD -1.97%) and Stratasys (SSYS -1.95%) have proven that there's a market for this new technology that can lead to ballooning revenue and profit.

During 2012, while focusing primarily on industrial clients, Stratasys pulled in $215 million in revenue, while banking a profit of $8.8 million. 3D Systems, on the other hand, focused intensively on the consumer market, generating $354 million in revenue, and taking home profit of $39 million.

Both companies have also shown remarkable growth over the past three years.

DDD Revenue TTM Chart

DDD Revenue TTM data by YCharts.

But despite the fact that these two players have shown that 3-D printing can be profitable, there are still bound to be doubters in a company like Organovo.

Consider the following: Over the past 12 months, Organovo has generated a grand total of $1.3 million in revenue, of which 20% was from grants; during the same time frame, the company had a net loss of $21.6 million. And yet, Organovo is valued at a whopping $300 million.

For those without calculators handy, that's about 230 times sales. Crazy.

Why I'm buying
And yet despite these numbers, I'm going to be putting my own money behind the company. You might still consider me crazy after hearing them, but I have three key reasons for making this move.

First, Organovo has a focused niche that neither 3D Systems nor Stratasys has made a play for: bio-printing. Though it sounds straight out of a science-fiction novel, the company can produce functional human tissue that some think could one day lead to the engineering of actual body parts.

That's a little far-fetched, though, and I like to focus on what the company can do right now -- which is to offer the pharmaceutical industry a powerful new tool -- its Novogen MMX Bioprinter.

Source: Organovo. 

Because Organovo can allegedly produce human tissue that more closely "replicate[s] native human biology," the process of conducting research on new medicines could become much quicker.

This is important; the 3D tissue could help drug companies eliminate potential drugs -- and save a lot of money -- sooner, as their efficacy would become relevant much earlier in the trial process. As these trends show, that would be a welcome development in an industry seeing fewer FDA approvals and higher costs.

Source: FDA, Pharmaceutical Research and Manufacturers of America, Organovo. 

This leads me to my second point: This technology is in its infancy, but major players are already starting to test it out. Both Pfizer (PFE 1.00%) and United Therapeutics (UTHR -1.63%) have taken the bait to test Organovo's tissue.

The company's agreement with Pfizer was completed in late 2012, and Organovo is waiting to hear back from Pfizer as to whether the company wishes to continue using Organovo's product. The agreement with United Therapeutics, on the other hand, is currently still under way, with the company using Organovo's technology to help research pulmonary hypertension treatments.

Though it's impossible to know the outcome of these initial dabbles into Organovo's technology, any further agreements between these companies could create a huge boost for Organovo's revenue.

And the final reason I'm willing to take a bite of Organovo stock is because -- seeing as it is very volatile, and has no history of producing meaningful profits -- it will occupy a very small part of my overall portfolio.

Should I lose the $500 I'm investing in the company, it wouldn't be the end of the world. But by buying in, I'll continue to follow the company. If its technology catches on, I'll be keyed into the growth story early enough to add further positions before the rest of the market catches on.