I faced a similar situation, minus the birth of a child (congrats by the way). I had over 3,000 gaming magazines and their weight became an issue for where we were living so I had to part with large swaths of issues (complete Gamefan, minus the E3 special release issue for instance). It hurt but the money came in handy and about six months after I sold out, the market crashed - at least for the higher value issues (Gamefan #1 dropped from $400+ to about $100 in mint condition) so I have that to console myself with. lol

Now I have an extremely large collection of mini figures (I resell on Ebay regularly) that for some reason keeps growing (though I think I have a ways to go before their total weight becomes an issue).

Honestly, I see a crash coming in the collectors market for stuff like this. Games are just getting so expensive that eventually people are not going to buy them. This happened in the lunch box collectors world in the late 1980's (may have been early 1990's). Prices got so high that collectors simply stopped buying them at a time when companies were pushing out limited editions, reprints, etc. Sound familiar?