Oh yeah, you gotta have a good set of balls for golf
Different balls are designed for different effects - some will provide a lot of spin and others little spin, some are designed for golfers with a great swing and others for those needing more speed, etc.
Here's a pretty good site that have reviews of balls and points out which type of golfer could find which kind of balls useful to the way they play or the way they want to play.
I used to only go for the expensive balls. I used to buy like 50 at a time off of ebay. But now that I've used these new cheap balls from Walmart I no longer feel the need to drain my wallet for a good game of golf. The cheaper balls get the job done.