Make all the tech levels same "price", (Level 1, 6000; Level 2, 50,000... well, you get the idea) that way you actually have to choose which order to get them. The way they are now, it's kind of (at least for me) as you get the points, get the level you can "afford". Also, lower the next levels a bit. 50,000 tech points seems like a very high number to get considering how long it's taken just to get 10,000! I am a very patient person, but don't know about that!