the reason closed toe isnt offered in lower end bindings is because people that get low end bindings are usually looking to share bindings and need a larger range. with closed toe boots you cant have that kind of range.
hey brad where do you live? cause i live in california and theres a shop right smack in the middle between la and sf that has ronix closed toes for 200-320. the frontiers there are around 200 and the ones/covins are 320. they also have a ton of 06 closed toe shanes on clearance.