I picked up some of the buddy biscuit tricky trainers from the store today. They were on sale and for the value and quantity (almost a pound!) it was worth it. But they are a little bigger than zuke's and I really prefer smaller treats.
I've definitely done the treats in the mouth thing with my own dogs with cheese or hotdog. I can't always use cheese, hotdog, etc though because 1) I'm outside training in the summer for up to 6 hours, it would go bad. It's also expensive because I only buy organic hot dogs/cheese and I don't do that for students anyway. Plus treats run out during class sometimes and I have to buy something on the fly.
With the way Patton is going through treats (over 9oz of cat treats today!) I definitely need something easy and cheap, but of a decent quality at least. I'll use weird/off brands of treats if I don't have to buy them (goodie bags, etc) but won't actually support the companies myself. If that makes any sense? *shrugs*
Zuke's were the only treats I could find that Frag would tolerate for a while when he was younger and I had limited access to treats... So they hold a special spot in my heart, even if they were not the best that could be bought.