New member and collector here. My 3yo got her first Lego set at the beginning of December and she loved it. While browsing Christmas presents for her I noticed the new Millennium Falcon and decided to buy it for myself. That ended up being a costly purchase as you will see. Since then I've acquired:
75131: Resistance Trooper Battle Pack
75132: First Order Battle Pack
75139: Battle on Takodana
75140: Resistance Troop Transporter
75093: Death Star Final Duel (not built yet)
75094: Imperial Shuttle Tydirium (not built yet)
75099: Rey's Speeder
75100: First Order Snowspeeder
75101: First Order Special Forces TIE Fighter
75104: Kylo Ren's Command Shuttle
75052: Mos Eisley Cantina
The Falcon, Tie Fighter, and Kylo's Shuttle are my favorite sets that I've built so far. I still want to get the Sandcrawler, Ewok Village, and Poe's X-Wing and then I'm done buying what's currently out. I like a lot of the retired sets but I don't want to spend more than retail so I'll just wait for new sets. I've always been into collectibles. I've collected and played Magic the Gathering on and off since 1994. I was able to sell a portion of my MTG collection that had been sitting in a box in my closet to pay for most of my new Legos. My daughter also has a pretty sweet collection now but I won't bore you guys with those details.