ADS L1290s....do these have any kind of value these days? (I'd say 8/10 condition)

I recently acquired a pair of ADS L1290s from my father. He closed down his architecture office and really had nowhere to put them. They didn't get a lot of use and I know they've been kept in a 50 degree+ environment for their lifetime. 

The woofers still have great elasticity, and the tweeters appear to be in great shape. My ears can't detect any problems. They just have a few small scratches here and there and a few missing pegs for the covers. 

He didn't use them that often. He also had a  pair of Infinity r.s. 2.5s that are obviously a little superior. 

They sound amazing, but I already have a pair of Polk LSI25s, some B&W bookshelves, and some Martin Logans. 

Do these still have any kind of value?