I have an "Accurate Instruments" model 257 Tester I use for most of my testing, it's very compact, new enough to be reliable and simple to use, I paid $10 for it at a swap meet but that was a long time ago.
They turn up on eBay from time to time, usually not for a lot of $$
$53:
http://www.ebay.com/itm/ws/eBayISAPI...vip=true&rt=nc
This one went for a whopping $173!:
http://www.ebay.com/itm/ws/eBayISAPI...vip=true&rt=nc
$50ish seems to be the norm.
There's a nice Mighty Mite on eBay with five days to go:
http://www.ebay.com/itm/SENCORE-MIGH...item3f14fb41e4