With the release of the new sgminer 5.0, you can switch algorithms on the fly. I can't help but feel that some way or another we could have a section called merged mining, where all of the providers that are using the new sgminer can host their rigs, and the renter can choose the algorithm they want...

This would revolutionize things, so that a provider doesn't have to worry about changing their provider settings to suit the most profitable algorithm. They can put their price in btc/mh/day in scrypt equivalent, and it could be displayed accordingly for the different algorithms on the fly.

example:

Scrypt   x1 BTC/GH/Day
Scrypt-N   x0.5 BTC/GH/Day
X11           x4 BTC/GH/Day
X13           x3 BTC/GH/Day
Keccak   x500 BTC/GH/Day

This way if I want to rent a rig I dont have to worry if there are enough rigs in the "X11" section, because all the rigs would be able to whatever algorithm I wanted... get the idea.. NiceHash has setup a similar thing, Im sure we could do it here too with a little thought put into it.