I don't think it'll be super expensive, just a new pulley I believe, but the crappy part is I just spent all of my free cash on guitar pedals, so now I'll have to borrow the money from my roommate.
It's dope lol, but it's one of those things that you have to create a use-case for. Most of the music that anyone plays will not need or want this, but maybe it's just waiting for the right weirdo...
And that's exactly how I've found myself justifying having 3 different pedals that do delay/reverb in some way (I have 7 pedals on my board in total, lol). But I do find trying out new effects or instruments leads me to write something I wouldn't have otherwise written on an acoustic guitar. "More reverb!"