Personally, most of the line hasn't been attractive enough to me to pick up. However, the value in that scale for me is when they can interact successfully with something from the 3 3/4" line. For instance, the older Snowspeeders are nearly perfect for the large AT AT. The little tiny Galoob Jawas are a decent size next to the Vintage Sandcrawler. I think you get the idea.
I mean, it's nice to have toy versions of all the ships and characters, but practically, it's obviously impossible to have consistent scaling across the board. This alternate "action fleet", while inadvertant, offers a way for some cross-play to happen on occassion.