Quite a few people in my guild take laptops when they do business trips.
I suppose one-boxed laptops for raids is a lot lower requirement then something you can 5-box on.
But it is a consideration.

I'd stick with as many options as you'd think might be fun to play down the road... as long as you have the RAF, might as well.

I too did 5x Hunters and 5x Priests, during RAF.
In my case, I've not touched them since, but having them leveled is nice.
I'm going to level both sets from 60th to 70th, for trade skill purposes.
Possibly further, as they were both fun compositions to play during RAF.

I didn't do Warlocks, which I'm in the process of leveling (4x Warlock & 1x Priest).
Well.. want to level, I should say.
Beyond creating the team, and basic macros (level 22's now), haven't touched them in quite a while.
I wish I had done the team during RAF...
And quit leveling teams (1-60) with over 6 weeks left in RAF.
Hindsight is 20/20 they say.