Bruce, those putter covers are all very nice- great collection!
I only own one Scotty and it's the only one in play since I got it in May 2015, a Futura X5r. (ordered it from 19hole)
Almost recently, I bought a new putter cover in an offering when I was at Bethpage Black to commemorate my visit for putting well there. I like all the SC putter cover, I think they're fun to add to the set.