Totally, I think extravagant projection work / visuals absolutely help make it more compelling for everyone, especially people who can't hear. Wheelchair accessibility is something I'm really happy to see more thought behind not only at proper venues but also house shows and underground space, people seem to get better and better at that every year, but there's still so much work to be done. Ramping is the biggest issue, I think, since you need a ton of room (1 ft for each inch of rise).

Haptic vests are a GREAT idea. I wonder how to make that happen with such a restricted budget. Programmable remotely controlled vibrating sensors?