It's a nice thought...
Since I've bought my R4, I've bought tons of other DS games as well. Whatever was good, I bought, whatever sucked, I deleted (strongbad style). I was mainly just fed up with buying terrible games/games that don't interest me and having waisted $35 on a Piece of plastic. I'd probably use it mostly as a demo tool as I did with my R4.
Oh, and on the subject of non-piracy related homebrews, I, personally, can't wait 'till I get my hands on those DVD loading versions of SNES9x and hopefully soon enough, FCEU (or whatever the abreviation is...the NES emulator)