Go to discgolfer.com then hit the Buy Online button at the top right then go to the desired bag and click on colors...you should see what is available and what colors are ordered. Also you'll see how many are in stock. Looks like they'll have about every color next week! I called and talked to Dave himself...!
Based on the fact that I had to wait for mine to come in about a month ago, it looks like they're having issues with more people wanting them than they can stock. Not a bad thing though.