I get the Align on Amazon through their "subscribe and save" program, making it 68 cents per capsule, and shipping is free. I don't use it anymore though. My husband is the one using it. He has UC and finds that it helps with his IBS type symptoms. He takes it twice a day. It also does not require refrigeration. He is the type of guy who would never mess around with a packet of stuff he had to mix with yogurt or applesauce or whatever. He thinks it is a nuisance to take an extra pill!
Certainly, if you can get insurance coverage for the DS, the VSL#3 is a good option.
The main focus should be on what works I think, not the number of bacteria in a product, since even the same bacteria will not be equally effective. That is because of the difference between the various strains of the same bacteria. Still, there are good studies only with VSL#3 in regard to pouchitis.
Jan