Me: Should I buy a prebuilt 3D printer?
Reddit 3D printing sub: Oh, heck no. I put mine together for $18.22 plus some spare parts from seven printers I got of craigslist for $1 from some widow. Only took me three weekends to do it, plus a couple hundred hours to update the firmware to match the parts and troubleshoot it.
Me: Uh, so does it print better than the one I could just buy?
Reddit: Well, I'm still tuning it for all my filaments. I've been through about 40kg, and I've got a trashcan full of benchys though. The last few have been pretty good.
Don't care. I will watch every second of every build project Adam Savage does in his shop.