Unless you have deep pockets I don't know how you could be a player or collector without being a fixer/restorer. Having said that, I know there are people who own machines with no desire or knowledge to fix them. There's certainly nothing wrong with that but I think your missing a rewarding part of the hobby if you don't open the hood on occasion.
Me, fixer/restorer primarily but I wouldn't put in the effort if they weren't a great deal of fun to play as well. Plus I really enjoy giving others the opportunity to play machines they wouldn't otherwise be able to.