Who has built their own computer?

Computers you find in stores are often overpaid mos times you are going to pay 100 - 200$/€ only for plugging some cables in and installing some stuff.
There are many tutorials on youtube where you learn very fast to build a computer.
But i still prefer just trying it out but i still recommend, learning by doing, my first computer took about 5 hours but its very rewarding when you finally got it working.
I paid about 500$ for my all the parts.
I bought the parts on the internet on a website for pc stuff, i bought it there because they often get lower prices by the manufacturers, do never buy pc parts on amazon or some non pc tech website, they often have the highest prices.