kb71, Teledyne purchased AR during its later years. Personally, to me, THE classic AR series is the 2s, 2AXs, 3s, and LST. I personally don't know of anyone interested in the AR91s BUT that doesn't mean that some enthusiast wouldn't like them. My question to you is how do YOU like them? I'd like to know if YOU think they are any good. If you think they're crap sell 'em and if you like them maybe think about refurbishing them and keeping them. Let us know.