James
Lord of the Erg\o/s
I'd add Speed Champions (especially the singles), Architecture, and Ideas. The Creator Expert series which adds a new set annually are very collectable. I'm collecting the Modular Buildings, Winter Village, and Fairground sets.Creator Expert series, Star Wars especially UCS and some cars.
I've started the build of the Lego Titanic. The detail and scale are stunning. I'm going to savour the build over three weeks that I'm not at work. Even though it is an expensive set, I think it's worth the money. Easily on par with the Saturn V in terms of VFM. I'd buy another to keep as MISB.