...or should I stop being cheap and just try the Crohns one?
IMO, I would try the cheap one first and see if it works for you.
I tried the DAC's&CT also, and I had quite a bit of gas with it, so bad that I was having to take extra-strength Gas-X 3x/day. Husband saw Align and suggested it, but I didn't want to spend the $30 so we bought the $12 bottle of Philips' Colon Health on the shelf next to it and that worked well for me (for half of a 24hr period) so I began taking a capsule every 12hrs....which means the cost per month is now $24.
Pretty darn close to the Align.
The thing is...everyone is different, the products also have slight differences in them...so you have to find what products works best for your particular situation. Try the cheaper ones, first. If you don't have good results, then work your way up through the more expensive products until you find the ones that work best for *you*.