Robert,
Good luck with it all, whatever you decide. There isn't much that I can add to this that hasn't already been said by far more advanced colelctors and professionals above.
But I will say this: Perhaps your confusion/hesitation suggests that a good route that would fit you personally, would be to sell it off in increments, according to your level of interest/passion in the particular pieces. In other words, start trimming the collection like a bonsai tree. Start with the least favorite items, and continually trim the incrementally less-loved pieces over time.
just a thought.
hopefully over time you would have a smaller collection, have realized cash value, and at any given time, only be left with what you like.
Now, for that piece of advice, please send me your Jimmy Foxx cards!
Honestly, though, best of luck, and keep us posted on what you decide, as it will serve to help us all withour own decisions in some way.