ever tried ENGL? I want a new amp, too. and from everything I've tested so far, I liked ENGL best. I compared the 5150 to the ENGL Fireball and liked the ENGL a little better (even though its only a 60W amp) the fireball doesn't have a real clean-channel though.
everything ENGL makes is all-tube, no solid-state. all of there amps (at least the ones i know) can produce great clean an insane lead-sounds (and most that is between those two).
I can only speak of prices here in germany:
fireball:
new: some 900, used: sorry, I dont know, some 600-700 i would guess
Savage60 (what I'm looking for at the moment):
new: they dont produce it anymore, used: about 600
Powerball:
new: 1500, used: i've seen some for about 1200
Savage 120 (the flagship):
new: 1900, used: probably about as much as a new powerball
Screamer 50:
new: ca 850 (the combo-version a bit more) the Thunder 50 is a little cheaper, but the screamer is better
Sovereign100 (combo)
some 1200 I think
Richie Blackmore Signature:
new: some 1200, used: some 700-800 probably
there are also some older models you may find used (Screamer 100, Straight, Sovereign50, they aren't produced anymore) but I can't tell you much about the prices of those.
a dollar is worth a bit less than a euro, but ENGL is a german company, so over there in the US, the $-prices could be about equal to our -prices (but I dont really know that)
for more info:
www.engl-amps.com (you can also find the manuals for all the amps there)
hope that helps, go test them, maybe you'll like one