I haven't bought a floppy in over 15 years. I have a box of 'junk" floppies that I re-use when I need a floppy. The box dates back to the mid 90's with disks from the 80's (AOL provided me with a crapload of floppies). I give them a full slow format. I toss about 1 in 20 I'd say. Last year my office got rid of all the 3.5" floppies in the office. I was the last person with a floppy drive so I took all the floppies home. There were 4 new boxes; the rest were used. Total of about 100 disks.

All my stuff is now back up on multiple SCSI hard drives. I'm going to start burning CDs soon. I just went through a bunch of 5.25" floppies from the 80's and they ALL read fine! And they had been stored in a hot Georgia storage unit for at least 7 years. Ditto for the 3.5" disks. They read just fine (MS-DOS. Will check the Mac disks tomorrow).

Just scrounge up what you can, give them a fresh format, and use them. I'd start archining them to CDs & multiple hard drives.