I have a Model 88 308 w/ a 13XX serial number (1st yr production). It's like new. I bought it and a Model 100 308 (it's younger auto cousin), w/ a 23XXX number (again 1st yr production), also in like new condition, at a shop for $450 each about 2-3 yrs ago.
While at a show this weekend, I found a '62 Model 100 in near perfect condition for $325 with a spare magazine, that needed some extractor work. I pulled it apart, and cleaned the gas piston and the hole in the screw cap - hopefully, this should take care of the problem. Now - if I can just find the hammer spring that shot across the living room!!!
My Dad has had a Model 100 308 for about 40 yrs. Last yr, I found a Model 100 243, and bought it for him, due to him getting up in age a little, and I was trying to minimize the recoil for him
They are great looking guns, however, as previously stated, there is quite a bit of creep in the trigger.
Enjoy
Mike