avg. price to spend on a pc

Really depends on what you want to do with it. I'd say if you're just looking to play some games or perform light tasks, you could spend anywhere from $400 all the way up to $1000+ (also dependent on the settings you wish to play at). If you looking to do something a bit more demanding like video editing + rendering, or game development using professional game engines and other tools, you may want something with a bit more power, so you're probably looking at $1000 at the minimum, although it can be done with lower-end systems, just not as comfortably.