If your wanting to try out different tuners the way to go is with a flashscan. If you already have a tuner in mind, you can probably get a better deal from them directly purchasing an autocal with tunes loaded on it from them.
With the flashscan you have more options and functionality but it will cost you some more.
Blank new autocals sell for 375-450ish (depending on who you buy them from), brand new with a license ready for tunes....... but it will need to be linked to a flashscan then tunes purchased and loaded to it for use.
Flashscans don't necessarily have to have the tune loaded to it, because you can flash in passthru mode by using your laptaop. If you find a used one reasonably with a license that would be the way to go. And, FS don't need to be linked to any specific tuner, so you can use anybody out there.........