Something funny, I lost my first disk practicing in an open field, not on the course. That baby cost me $17.99 and was a week old. I wasn't laughing at the time.
Oh lord no. You want some discs, buy or trade for ones on here or DGR's forum (stay away from discaroo). Very good prices and fast shippers on here like myself and best of all we (mostly) know are discs inside and out so you can get something very tailored to your needs.
If you can't find what you're looking for, hit up these places:
discgolfcenter.com (free shipping over $12)
marshallstreetdiscgolf.com (OGs, very cool dudes.)
primediscs.com (free shipping)
clearwaterdiscgolfstore.com (massive selection, Discspeed here will hand pick discs for you if ask him too.)
gottagogottathrow.com (good deals on x-outs here)
sunkingdiscs.com
discgolfvalues.com
the list goes on.