The ones I picked up range from $400- $500. That's pretty cheap?! I thought you can buy a decent unit for that price lol
You can. Actually, the turntables you mentioned are less than the price range you quoted. The Marantz can be had for around $220.00 online, the Pioneer is available for a little under $300.00 and the Audio Technica for about $250.00. Of the three, the Marantz seems to have the best specs and, being made in Germany, has a chance to be better than the other two which are Chinese.
There are other choices, of course. The Pioneer PLX-1000 mentioned previously seems a good turntable, though it's aimed at the DJ market. It also costs $700.00 so is probably more than you want to spend.
There's the Onkyo CP-1050. It costs $400.00 and has specs in the range of the three you asked about.
Also the Denon DP-300F. It's about $330.00.
There are others too, like the U-Turn Orbit, made here in the US by a group of young enthusiasts, "Kick Starter babies". They start with a basic design at $179.00 and option it up to a maximum of around $350.00.
Then there are entry level offerings from "audiophile" companies like Pro-Ject and Rega. These might start to push your budget a little and they have faults, like speed instability and motor noise, that I find unforgivable in a turntable with audiophile pretensions.
One thing you should probably be thinking about is features, particularly the level of automation. It seems these days that turntables are made either as fully automatic (push a button to start, returns at the end of play and shuts off automatically) or fully manual (set the needle down by hand and pick it up at the end). There used to be an auto return option where you began the record manually but it stopped automatically. Nobody seems to do that any more.
You have some of each in your list. The ones I added are all manual except for the Denon DP-300F.
So, you might want to do a little more homework and a little thinking a bout features. Rest assured, though, that there are decent turntables out there in your price range. If you have any more questions, don't hesitate to ask.
John