I bought and sold my TIE Striker, but I did keep the Shore Trooper for my personal collection. I just got into buying/building LEGO back this past December and it started with the Imperial Shuttle Tydirium. I have also preferred the Empire/Dark side, especially the ISD's and AT-AT/AT-ST walkers. I am primarily in the game as a builder/collector, with the occasional re-flipping of used sets/parts that I don't want for myself (you know, buy in bulk locally and resell the unwanted parts to keep the hobby going). My wife doesn't mind too much, but limits my built pieces to one small corner of one room in the house hah!
I am definitely in for the new AT-ST, ISD and BB-8 for this Sep release. The March release was kind of OK to me, granted I did pick up Battle of Naboo (not built), Yoda's Star fighter (built, going to storage), Scarif (my favorite of this year), Y-Wing (built, going into storage). I do not have any of the sets from the June release, but Vader's transformation is one I might pick up as the rest are kind of meh to me. I do not care for the contractables at all.
My collection consists of Star Wars (no UCS sets as of yet, but would like the R2, Death Star 2, Tantative and the ISD and SSD though), Monster Fighters (have castle, but want to add Mad Scientist, Zombies and Haunted House), Batman Movie (have all so far except the Asylum) and just started getting into Pirates of the Caribbean (have the Silent Mary and about 90% of the Black Pearl. I only plan on adding the QAR with the Mill, London Escape and Whitecap probably).