The PDX2000s make great scratch tables. They have more torque than the Technics (so obvious if you've ever used them), but they take your face off if you're used to the slightly slippery Technics. I DJed on my mate's 2000s for a while when I used to go round his place, and frankly I found them unsatisfying and overly exacting - you had to constantly adjust the pitch by minute values and even then you'd have problems with beats going out of sync, purely because the torque and platter combination was so exact that there was no margin for error. You had to be an absolute robot to beatmatch DJ on them well, and frankly I just found it tiring and frustrating after a while.
I only played with the TTXes at a couple of trade shows - and again, I found them unsatisfying knockoffs of Techincs.
I considered my purchase of decks for a LONG time before finally going for some of my own. What did I get? Two 1210 Mk2s. Why? Because they've remained as essentially the same design for more than 20 years, they're ubiquitous in clubs and just about every DJ setup you come across - and their reliability is pretty good too.
They have their flaws (hard wired RCA and earth cables etc) but if you're mad on fixing that then you can mod them to have sockets instead. Your mileage may vary on that of course
Still, I opted for 1210s for my home setup, with some Shure whitelabels. I've not been disappointed. There's a reason that audiophiles who have hifi setups running into the tens of thousands of pounds can sometimes be found listening to records with a high-spec tonearm and cartridge... But the deck is a 1210 Mk2!