Some people just value their equipment more than others. My Mark V is worth far more than $1295 - what it cost me. You could "not even" have mine for that price. If you offered that to me right now, I'd run you off the premise.
Value is definitely in the eye of the beholder that is for sure. Everything Shopsmith that I have was purchased brand new and has been well cared for. I totaled it up one time, between the Mark V and all the accessories, I think I have sunk $8k into all of it. If I could get someone to give me half that amount for it, I would take the money (sadly market value is way less). Not even accounting for inflation here. If going on value alone (bang for the buck), the clear way to go is to buy all used Shopsmith tools to begin with, but I didn't do that.
When it comes to 10ER's...the funny thing is that I see them quite regularly for sale online in other states around the country ($100-400 usually). They don't come up in AZ that often since I have been looking. There is a very rusted one in Prescott still for sale, I think. I had made a reasonable offer, but never got a response from them...but that is the new "normal" on Craigslist, i.e. lots of ghosting.