That said, the best parts cost money. By that I mean parts that are better in ways known to physics, not hyper-relativistic black hole refractory spirals (apologies if someone has already trademarked this - I sin in ignorance).
You simply can't fake nude Vishay resistors or vacuum capacitors or air bearings. Once you've heard them, there is no going back - and it doesn't matter how much can be spent on overhyped gear du jour, which uses such parts sparingly, if at all. And won't be set up correctly anyway.