I've never seen either vehicle in the store, but a friend of mine has both (internet order I think) and I looked over them.
The Ice Sabre is a very nice vehicle. I don't do too many snow missions in my Joe world, so I'll be skipping it methinks (I'll save that $15 for the desert repaint of the Humvee). But it is a very nice vehicle, lots of cool details that shows Hasbro really was trying there. I'd get one if I had more disposable income, but as it is, I have to pass for budget reasons.
The Quickstrike doesn't even intrigue me though, I can skip it with a clear conscience since Bazooka's got a repaint coming with that awesome Torch figure anyway.