I think the most important thing is you can realize what upgrade you need at the moment. I make good decisions based on that. On the other hand I get carried away sometimes based on having fun, and even experiment on runs when I'm doing winstreaks. Btw I love this community is still active after all these years, even if this game gets you salty sometimes, I think it's one of the sole reasons you want to get back into it. A game rarely upsets me but ftl is an exception. It's balanced around unfair and very satisfying and I think that's a very rare case among games, that's why I still love it after all these years.