VIP does need a bigger purpose as well, right now the only reasons for it really are different colors, unlimited revive for a month and usually some kind of item. I mean, if someone just wanted unlimited revive for a month they could cut that price just about in half and buy a months revive.
Lately the VIP items haven't even been that great in my opinion anyways, I mean sure they're cool for like the first few days, about a week later you never see it used. Instruments are a nice implement, but instead of making something that isn't even used that much should just be sold in shops instead.