Still think Strange Tales 110 as undervalued and great hold for long term given the insane parabolic rises of DD1 and X-men 1 these last few months. The last half year, I've been on the look out for this book whenever I see a collection or visit a store because I always enjoyed reading about the good Doctor of the mystic arts. Although ST110 cover is controversial, it's still frickin Dr. Strange's 1st appearance.
All the other silver 1st appearance keys are pretty much becoming unattainable for the general populace... as we inch closer to Dr. Strange 2: Multiverse of Madness, this Silver will follow it's brethrens' trajectory.