do you repair your computer? Your phone? Your TV?
yes :-)
To be fair, I also repair other peoples as well.

plus 3d printers are actually a lot more mechanical than electronic. So unlike many modern gadgets - there is a lot you CAN actually do.

Source filament locally - ebay and amazon are both excellent plus local websites are in abundance.
Don't think prusa is based in the states - given that it takes longer to post to the us than to europe :-)
He's actually in the czech republic :-)