Tis true there are several threads on this topic, but my own thoughts (from experience with around 6 of them, maybe more) is that they are essentially quite simple machines and there are lots of very good second-hand ones around. Agree re the blades - Tuffsaws; and try and see one before buying; and check the fence is with it as it is amazing how many lose their fence.
Currently I have 2 and they are both quite old (secondhand), but my own experiences were:
Elektra Beckum 305 (I think it was 305) - new, fairly good, poor guides (crude) - an OK machine, decent value secondhand.
Scheppach (350 I think) - better - quite good, good secondhand
Record 500 - massive (I believed I needed a big one) - a bit crude, wheel balance poor... not at all great
Kity 413 - smaller bench-top - outstanding (very similar to the Inca 260) - got it secondhand, highly recommended. I suspect the bigger 613 is well worth a look too. Not available new any more (eBay etc.). Rare as teeth, but around £150, maybe less.
Inca 260 - excellent - really precise machine, quiet, smooth, well designed and made. They have many fans for good reason. Not available new anymore, some were later sub-branded Axminster. Most people who get one of these don't sell them. Aim around £100-200
Startrite 352 (Gillingham made, green colour) - excellent floor-standing machine, small footprint. For a smaller workshop it's an absolute winner. Many are 3 phase but some singles out there. Tend to go around 550 - 700 though.
One thing I learned along the way. I didn't need massive at all, just good. The Startrite will deep rip better than the bigger Record - full 10" into any hardwood. Must fit a decent Tuffsaws blade, and spend a little time setting them up... ask Steve Maskery, he'll sort you :wink:
Hope that helps!