Hi. I am a big fan of the Satellite amps. I love the Boogie Mark Series clean sound!
As someone mentioned on harmony central, it is basically a 60W Mark III with a different (stripped down) preamp section(only volume, tone, presence, master), no reverb, and no graphic eq. (Also, no slave out)
Actually, I have not heard the 60, but I have the Simul-class version, which also has the graphic EQ. I have heard a lot of people dismiss this amp as not being a stand-alone amp, since it was made to be an extenstion amp for running the Mark III or IV in stereo. But I would beg to differ...I would agree that you can't get this thing sounding like a Mark III or IV, as there is not as much gain available in the preamp section. But, as I'm sure you know, it is a great sounding amp! If you put the volume above 8 (volume pot pulled for the gain boost), you will get a great Rolling Stones kind of crunch (esp. in tweed mode). And the best thing is that it takes pedals really well! Clean boost, BB preamp, tube screamer, treble boost, big muff, fuzz... you name it, it sounds good. (David Gilmour got most of his gain sounds from pedals, not the amp!!) Also, I replaced my original EV with a Weber California (as I did for my Mark III and Mark IV), and it sounds so much sweeter and more...musical, now.
Plus, if you already have a Boogie preamp (Quad, Studio pre, V-twin, etc..) it is great power amp... Put a Chandler tube driver in front of this thing, and you won't remember this is a low gain amp! I have run my Quad preamp into the Satellite and I cannot distinguish it from the Mark II's and III's that I have heard.
While your amp IS somewhat rare, they are not really that valuable for resale, probably because of the limited preamp section. I would guess they made more of the Simul-Satellites than the Satellite 60's, as most people probably wanted the GEQ and simulclass power amp, to match their Mark IV....I have seen the Simul-Satellites go for $500-$600, but the Satellite 60's usually don't sell for more than $400. I just saw one sell for $345 on ebay recently...its amazing really! That is a lot of amp for that price! I think a Quad and a Satellite amp sounds better and is more versatile than a Mark III, for about the same price!
Hope you enjoy your Satellite 60!