^^ Good point, although I guess that begs the larger question of whether patches these days aren't mostly pointless(?)
Previously, when it was much harder to actually trade recordings since you had to make tapes, etc., giving out a patch was a useful thing to do - you got someone a copy live on the fly and you didn't have to make one later. Plus, making copies not only took time, but also wore down decks.
Now, with every show (esp by larger open-taping bands) being seeded for the most part, with (in many cases) multiple options of HQ rigs to download from, I would think the main reason to go to such a show with a starter rig would be:
1. It's more fun to make your own tapes
2. You learn how to do it so that when you're not one of several tapers, you can do it right
To me at least, patching doesn't accomplish either, since the patcher does none of the setup and it's not their gear.
Just my $0.02 though. The only other reason I can think to patch is if it's out of a taper who doesn't ever seed/trade their recordings and this is the only way to get *their* recording out there, assuming you know enough about them and their rig in advance to be able to ascertain that.