Yep its true, as they get older their neat banding does start to break up, especially as they begin to get sexually mature.
These fish would be breeding age and size now, so its a pretty good price for pairs.
I have never seen an L134 with that much breaking of the banding to make it look almost like an L066, however these fish definitely do look to be L134 (they have a fairly distinct body shape which helps distinguish them from most other L's of remotely similar colour/markings).