Tube Testers. Which to buy and where?


I'm hoping I can afford a tube tester, used. I'd love to be able to test output and input tubes, 6550, KT88, EL34, etc.
I've no idea how much they go for. I've looked on A-gon here, but I've no idea if these are worth pursuing or junk.
I'd even consider new if new could be had for a few hundred, or preferably much less. Then again, I'm thinking if they were that cheep, maybe everyone would want them?

Any input is appreciated.
Thanks,
David
rolloff
TV-7 and have it calibrated by Dan Nelson in Arizona. I've had Hickoks and the TV-7's (I've had a couple of them) are my favorite. You might want to check EPay (EBay), but they don't run cheap anymore. Couple of hundred to about $1,400+ within the last two months.
Thanks Mae.
A couple of hundred to $1,400 plus is quite a range. I'll look.

David