Well, they have a product that *may* be *somewhat* better. I can see a shop that wants to gain consistency might find it useful to buy one for each head/handle---but---if I have to learn how to use it, I cant see it making a big change when I only have one machine and one group handle.
As for the shipping rip-off---they have to make a profit somehow!
I got a pair of shoes express delivered from the States in 7 days (over Easter!) for less than half that price.