Guys - thanks for the replies - totally cleared that up for me, and confirmed my own suspicions.
I'll probably get the 3x1 for that extra set, for "down the road"
I don't need the Remote Control version, since I can't imagine sitting down and playing more than 1 console in a "game sitting", but thanks.
If I do manage to get all 3 consoles this year, you definitely WON'T be hearing from me

but I do suspect that won't be the case. I tend to buy on the second batch since waiting outside Best Buy till midnight or whatever is not something my 38 year old bones enjoy, and I suspect my wife might have some choice comments too
Thanks for the mwave pointer too.
Thanks again guys ! appreciate it.