Should I sell my video game collection?

I have over 50 Gamecube games (all the good ones), 50 Wii games (all good and rare ones), many N64 games, SNES games and a few Nintendo consoles complete in box. I bought many of these games on eBay 2-3 at a time and I hate having many games and I havent played more than half of them. I really want a Fender stratocaster and a new Taylor acoustic. Should I sell my entire collection or should I sell half of what I have and slowly start again but one console at a time. I feel like I spent too much money in the past 2 years and kinda regret, but I really love Nintendo's games. :-/

I want to save for a trip to New York as well, which can be expensive, but 1/4 of my collection should cover it. Please help. What would you do? I might regret it, but I want to sell lots of stuff because I need money as well. Thanks.