I actually operate under that principle too. If I pirate something and like it enough? When I have money, I'll buy it.
A few examples.
- After moving in with my girlfriend, we hacked their PS3. I downloaded copies of Dead Rising 2 and Fist of the North Star: Ken's Rage. I liked them both enough that I bought them (actually, I bought the "Zombrex Edition" of Dead Rising 2).
- I'm a big fan of the Japanese musician Gackt. When I went to Japan, I hunted down a few of his albums/singles that I could afford (Japanese CDs, even used, can be $20-30+). I now have three or four of them.
Hell, sometimes I'll buy something just because it's easier to buy it than pirate it. I'm sure no one has heard of the TV show "Instant Star", but I was a big fan of it when it aired on TV. I tried finding torrents for the third and fourth season, and they were either non-existent (no seeders) or terrible TV rips. So I bought the DVDs for those two seasons (and plan on getting the first two if I ever see them).
I mostly pirate things for two reasons. One being the fact that the game-rental store is basically a thing of the past (in my area, we don't even have many DVD rental stores anymore), I don't want to have to pay $60 to get a game I don't like, then have no way to return it. If I really like something? I usually buy it, when I have the money. Which leads to number two. Now with no job, I'm a poor college student. Can't afford to buy all the things I want, so if I want something bad enough, I'll pirate it first.
There are, of course, exceptions. I got a copy of Skyrim for the PS3 for Christmas, and brought it home to find out I couldn't play it on our hacked PS3 (it requires a firmware update). So I pirated it for PC instead. Now I find that the PC version is superior any damned way (community mods FTW), and plan on buying a copy for the PC (collector's edition, if I can find it) when I get the chance.