and computer science is my major

well that's not a bad start

I mean, you wouldn't willingly buy a $1000 car, it's likely to last 14 seconds before it blows up or needs replacement parts.

So buying a modern mid-high end CPU, board, GPU and PSU will last many years (especially the CPU, mobo and PSU) and not need any kind of upgrades except GPU once every 2-6 years (depending on what you're going for).

So in the long term, it saves you the hassle of replacing the entire thing, you can get a much better product that will last way longer... it's just better.

I mean if you had the money, you wouldn't buy a car that didn't have aircon. You'd be crazy not to unless you really don't care about heat.

Same goes for anything, people spend money on holidays and shit that's gone in weeks.

A PC lasts for like 5 years + as a high end rig if it is a high end rig now (again with the exception of the GPU which would be middle of the road).

It's just a good use of money if you like computers, want to play games and are also doing a degree about computers. I don't know specifically what a computer science degree involves because I hate computer software but surely there is some points where a better PC would be good?