Not sure if anybody has seen, but the ForceFX Lightsaber Construction Set is on clearance for $50 at Radio Shack. It's definitely the worst of the FX in terms of quality, but I got one to make a custom hilt on. Also, good for the completists here.
Re: ForceFX Lightsaber Construction Set on clearan
Future Shop has offered MR items in the past (usually the scaled replicas and FX sabers, although I've seen Studio Scale and Limited Edition collectibles on their website), but their prices are beyond absurd.