Looks like the APC45 is running around $2300-2400; the TP9 is running around $2000. I own a TP9 ( two, actually), and the y are fantastic, but I bought them for $800 each; $2K is kind of obscene IMHO. If you want something killer, look to the MPX or KRISS (waiting on my stamp on this one, but love the CRB). If you want something reasonably priced, built like a tank and reliable, check out the Masterpiece Arms MPA930DMG and the MPA30DMG. Both are Mac clones, but designed to take Glock mags. They have threaded barrels and are tapped for stocks. Mine has no trigger slap and is as enjoyable to shoot as my B&T.
EDIT- I own a CZ Scorpion, also. Nicely made and reliable, but must be SBR'd. Trigger is stiff, but breaks clean. The MPX is more refined and offers the benefit of taking AR trigger packs.