I would tend to agree, unless it is one of the C-Lab variants which tend to offer a higher price, but then these come up for sale left often as you may expect! I wouldn't pay much more than this, unless you really want to be ripped off [subject to opinion I guess]! Actually if it was me, I 100% would not pay more than this. I always wanted a Falcon and I paid £280 a couple of years ago, and was somewhat fortunate at this price as they were typically going for around £350 then, although it was a pretty bare but pristine conditioned Falcon, without an IDE hard drive, but at least it had 14mb.
Of course it goes without saying the consideration of exchange rates etc... and the prices such products may demand in one country to another.
Atari Falcon 14mb, 68882, Dual 8gb CF, Steinberg FDI & Analog 8
Atari Jaguar, Rotary controller, Skunkboard & Cat Box
Atari 520STFM 4mb, TOS 2.06 switcher, OverScan, GigaFile, PARCP-USB, Unicorn-USB, System Solutions MiniS HD, SyQuest drives, ICD Link II, PhatBoy MIDI Controller, Philip Rees 5M MIDI merge box, SoundPool MO4, Steinberg MIDEX, SMP II, Emagic Log 3, C-Lab Unitor 2, Combiner & Export expanders