Nice strawman though, if a bit lazy. You could have gone with piracy supports terrorism or something along those lines as well.
That is a metaphor that only obscures the real issue, because the money was never in your pocket to begin with.
If you're selling software for a living and you don't have a reasonable strategy for coexisting with the inevitable pirates, then you're doing it wrong. If piracy will make or break your business model, you are doomed.
I'm not taking any position on whether that's right or wrong. It's simply a fact.
If you like the software, you pay for it or donate to the developers to support further development. If it turns out it wasn't what you were looking for, you delete it off your hard drive.
I cant think of a single movie, album or piece of software that cant be pirated as easily as it can be bought - yet people still buy them.