yeah i agree with that! there isn't enough actual playing and too much proof of concept videos. i guess people find it easier to build something than to use it. i find myself a victim of that often!
I used to have one back when lsdj was in the early 4.x versions. but it was so incredibly unstable. i built myself a new one now and tested it and it seems to be a lot more solid so that's good.
I never really saw its potential other than novelty until i started expanding my live set to include stuff other than the GB, so right now i have a volca sample that i'll be experimenting with running along with the GB. initially i wanted to make me an arduinoboy and run mGB, but i'm a sucker for lsdj tables.
So i'm planning on playing melodies on the gameboy live and recording them using loopy HD on my ipad (only sampling/looping thing i have) while im jamming on the volca sample.
Id like to also get a TR-8 and volca bass for a complete setup and make the gameboy just a small part of a bigger setup rather than the sole focus.
I'll be experimenting with that setup soon (once i buy new batteries) and will be uploading some vids.