I understand the dilemma. I've gone through that quite a bit with my Montana and Walter PC wanting to pick up there full runs in PSA graded slabs.
But for me I feel I should be able to collect and invest at the same time and be happy, plus there's just too much stuff out there and I can't buy everything. With that, I only buy HOF RC that are iconic. At least this makes dropping $500 on something feel like it's as much an investment as me collecting a specific PC.
So, I no longer buy any new stuff and stick to the classics ..... No autos or anything after the Score Sanders RC
Jim Brown
Sayers
Walter
Montana
Marino
Elway
Rice
You get the point, there all so expensive in high grade that it keeps me from buying anything else anyway. I love the 1977 Walter but when I see the PSA 9 going for $400-500 it makes me pause and say just buy another PSA 8 RC.
But in the end, buy what makes you happy, for me I just see vintage football HOF RC taking off in price and focus on those....sometimes I end up with multiples
