Alan and Ginter was a close second in my expansion. And I don't rule out getting some in the future. But I suspect I want to stay with baseball (because, otherwise the universe is just too big for me -- I'm a medium-to-big fish in a medium pond kind of guy), and the odd inserts of scientists and bowlers or what have you put me off slightly - although they have a tiny appeal to my weird side (71% of me). We'll see. For now, with a very small universe of Gypsy Queen base sets (2011-2015), I think I'll get those (not worrying about the short prints), then it's back to expensive vintage cards. Such a fluctuation. I spent $175 on one card a few months ago, took a break, now I've spent $55 on 900 cards. And all of that feels better than spending $8/card on high number no-name 1971 cards, which I need. But I'm still really enjoying the hobby.
Enjoying collecting!
v3
ps - merging two on-going threads, I love the 1965s, as well, partially because I just love the design, and partially because it's the year of my birth.