That's true! However, if their PR departments were worth their salt, they'd come up with a Unique Selling Point (USP)
There are plenty of gimmicks, but the only real USPs I've seen are OUP with their English File course - short lessons, inductive grammar 60 (rather than 90) extendable to 120 hours, and the dreadful Reward serious, aimed at 'less-experienced teachers'.
Speak Up has been able to do that through their multimedia rooms.
Their method is interesting provided it's used well. It's possible to get up to upper-int without actually speaking, due to their way of dividing the courses into components and the multimedia assessment. If it's done well it's great, if it isn't it's truly dire.
It'd be interesting to know how Speed were able to get the rights to teach Callan here in Poland. Surely they couldn't monopolise the whole method!
AFAIK, they just buy and resell the books, the way Callan makes his money. I noticed they were calling themselves Speed Callan, so perhaps there was an additional payment involved.