I bought a Glock, new at the gun show today and got a decent price under $550.
Glock 20SF. IMHO Glock's best platform just the standard grip is too huge.
I had a Gen 3, 20C NON-SF, compensated and sold that last year because the 2 by 4 grip had a direct impact on quick shots. I kept: 6.2" 357Sig, 40S&W, and long threaded 10mm barrels. I also have a mess of magazines, and various recoil springs in different poundages and designs, stainless and tungsten and tons of other bits and pieces that would have lost me big $ if I tried to sell them separate or include them in the 20C deal. Someday I will buy a Lone Wolf long slide.