I guess the value of the added comfort over a cheaper alternative would be different from person to person. To some, saving the 15g on the bottle cage is "worth" the $200, while to others it isn't. I personally like them a lot (have the FI.13 S5) but I don't have too much experience with various brands or miles to really compare. They do run small tho, so if you're buying without trying on, I would size up.