Quote Originally Posted by Keir to the nth power
Most of these are rhetorical questions, I was just wondering if anyone else has struggled with this and what your decisions were.
Indeed, I have struggled with it too. In the end, I keep them all, and trade the lesser condition version of duplicate variants. I just can't bear to make the choice between console varients. On my actual gaming equipment setup, I put in place the version that I feel best represents the platform for myself (i.e. whatever I had back in the heyday). The 2600 is a woodgrain, the Genesis is a model 1, the Intellivision is a Tandyvision and so forth.

If I had anything less than a full basement to display my collection, I might do things differently.