I think Han and Ben will see clearance. Luke is the most abundant up here in my parts, but at that there's not that many. Leia is least populous of the first four. ESB none of sit for long, though I know where I could go buy a Lando/Vader/Yoda right now if I wanted. ROTJ wave has yet to hit here.
That said, I have two full sets and going. I'm not that impressed with the Luke loose at this point (seems short), the only one I have loose. 3PO is simply hideous, but what can you do, gotta have the set.
I'm taking some of the less common (maybe) or cooler pieces in trade still - stormtroopers (natch), Boba, Chewie. It's like a disease, so much money there.
I'm curious when the dust settles and there are none left at stores what will be worth anything. I'm amazed to see Vader hanging on a peg, day after day. Stormtroopers won't do that I'd guess, but aside from the obvious army builder, who'll be THE ONE down the line?