Beat to heck HR2510, TS-5010, Uniden 2830's and such are $150-$200 looking like they where dragged behind a car with extra holes and all kinds of "home brew work done to them! For a nice one be prepared to spend $200+ NIB $300. HR2600 well used but not modified sell for a lot less because only pompous arrogant hams want them so you just have to wait for an elmer that bought one but seldom used it to die. The HTX-100's and 10's are like the wild west in terms of price from $50-$200. Usually the HTX-100 look decent but just about all the HTX-10's I have seen that are not NIB look like they where used in Iraq for 4 years before making it to Ebay. Since the HTX-10 is based on the same radio as the RF Magnum 257 the controls are not unknow for long term durability and build quality like all modern exports the controls are cheap. Just compare a RCI2950DX of today to a first Generation RCI2950 first Gen that is in good shape the difference in the controls is obvious to the touch.
If you buy an old HR2510, Uniden 2830, HR2600, President Lincoln, HTX-100 be prepared to recap it and align it at the very least. You do not want electrolytics or tantalums to go out and take any obsolete IC's with it. Tantalums tend to short when they fail and most of them are close to their operational limits in CB and Export radios.
I was thinking about buying an Alinco DX10 but now I think I might not. CW buffering issues make for bad resale down the road should I not like the radio.