for me, it's about convenience and control. i... at night after i jerk off (note: don't touch my gameboy, you may catch something), while i take a shit, at a diner, while smoking outside on a sunny day.. ... I want to hear.
If I had to pinpoint a reason(s) why I persist with this hardware, this would be it.
Everything I use on a daily basis has an high level of portability, and if I can write hours worth of music with something that can fit in my backpack, consider me sold. I am rarely ever home where all of my speakers and recording equipment are. Besides, putting away time to produce music just feels too forced, which really kills the mood/process for me. Indulging yourself into new environments and actively creating something is what really drives me, not so much the end-product.
The whole "limitation" thing has been wrapped up pretty well and I was impressed, though I'd like to insert my own personal side:
I feel like I have been writing the same type of music ever since I got annoyed with my bandmates in high school. My only limitations were what I could do with my delay pedals, guitars, keyboards, and whatever else I had lying around. Everything was minimal but I kept a very specific aesthetic, that has matured to this day. The whole dance thing is just a case of me being side-tracked.