I started off with fan grills and led fans and cold cathode lighting way back when.
Now, my gaming PC, which is about due for its 5 yr update again, is in an old antec sonata case from 2008ish. I'll probably splurge on a new one next round, but if it's fancy, it will be one of those unassuming fractal cases with wood.
No lights if I can help it.