I have 120 discs. There are 9 in my bag.
Majority were free: tournament player's pack discs (including tournaments that include discs that you have to play with), tournament volunteer discs, discs from friends ("you should try this disc, you like it? You can have it")
Some were from used disc sales.
A few were raffle prizes.
And the remaining ones were ones I bought full price to try out.
In total, it looks like I've spent a lot on discs....and the reality is that I have
But not as much as my wife thinks I have.
This is a big difference between disc golf and ball golf...as others have pointed out. In ball golf, you can get 'fitted' for clubs and even the type of ball that is best for your game. In disc golf, there's no such thing as getting 'fitted'. It is all trial and error to find the discs that are best for your game - brand x's 5/3/0/1 disc seems to be the best for your game...but which plastic is the best? And maybe brand y's 5/3/0/1 is actually better. So many disc options, it is impossible to really find what is the best for an individual.....we mostly find what "seems" to be the best, but there could be one we haven't tried that is actually more suited to our game.
But after all I've spent so far on disc golf....I have not yet gotten to what I've spent on ball golf. Which is one reason, I rarely play ball golf since disc golf found me.