Do you have a link to the i360 Raindrop thing? Have not heard of it.
I feel you on not wanting to take it down after set-up. I only do a limited amount of things that
need the power of the iMac. Diablo is probably the most graphic intensive program I need and we know how little it takes to run smooth. Using Xcode on a 13in screen is driving me insane, so the upgrade to the bigger screen is really what I am after. As such, even if I miss the upgrade it would have little practical effect on me besides the "DOH, SHOULD HAVE JUST WAITED!!" feeling.
/just rationalizing my way through purchasing now