Me too, up to around £50, when the HD-600 was the unobtainable luxury model.
I've since had a good listen to that legendary 600, as well as highly rated models from AKG and (even more expensive) Beyers.
....haven't been sufficiently impressed.
You wouldn't go far wrong. Not as comfortable as some owners seem to think, at least not initially - too clampy, before some overnight stretchouts and the pads aren't as soft as on my old 590.
The sound of the 560S with the comfort of my 590 would be my ideal.
Lightweight, minimal clamping force.....homemade headband - can't even feel it's there:
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