In terms of used market prices, that is a good point Danyeo. I can't believe someone would sell a used RA for so cheap. Then again, without a steady following behind the amp, I'm sure that was a price point that the seller had to settle for to get it sold.
In terms of the RA v. ED on the new amp market, a comparison of the two amps yields interesting results. First, a new ED 2x12 combo retails for $1949. The Royal Atlantic 2x12 combo retails for $2149. In other words, the difference between the two is $200. If the ED can do what the RA does with a drive pedal, as you and others claim, and you take into consideration the costs of purchasing a drive pedal and new ED combo, effectively one would be spending almost what one would spend for a new Royal Atlantic combo. If you take into further consideration that the Royal Atlantic also comes with an attenuator, master volume per channel/mode, and an individual eq for the dirty channel, it would be difficult to argue that the Royal is a worse value than the ED. I know you were discussing the used amp market, I am just simply writing why I think the Royal is actually not a bad value in terms of what you get, compared to other amps in Mesa's catalogue. I've read a lot of people claiming that the Royal is overpriced. Fair enough -- but if one thinks that other Mesa amps aren't overpriced, such as the ED, yet claims that the Royal IS overpriced, well, I don't know if the statistics really backup such criticisms. I know, I know, a total Royal Atlantic fan boy, right?
Personally, I didn't think the RA and ED sounded at all alike, although, I didn't use a pedal with the ED. I loved the ED a lot too, just decided that the RA was best for my needs overall. Almost ordered a ED custom combo to match my RA, but decided against it a week ago. Let's face it, I can barely take hauling my one combo around, gig to gig. No reason to burden myself with carting around TWO combos, no matter how enticing the notion of a stereo, wet/dry rig is on my musical and creative psyche ...