Yes - there are full-Red Cherry keyboards at good prices, but not with a thick slab of brushed aluminum on top, the well-designed audio-control keys, and the extra red keys.
The K60 is on sale at one of the nations biggest electronics brick & mortar shops right now for $95.98. Corsair is a large enough company with enough distributors to where you can usually find it at noticeably less than list price.
I'm not saying these other keyboards aren't great choices in their own right, but IMHO the aluminum is what really delivers for the extra money. It's not the least bit thin, or silver-painted plastic or the wretched piano-black gloss finish that is on so many keyboards these days - much more solid and durable.
This gives off a truly premium vibe and contributes to an odd sense of owner satisfaction that is usually found in (gasp!) Apple products - or so I've heard...
One last note - regarding the "hybrid" nature of the keys, some being mechanical and some dome. Corsair uses a tuned silicone dome for those keys instead of the cheaper rubber dome. They are designed to be longer lasting than standard domes as well.
I'm no engineer, but I wouldn't think there was any cost-savings in building a keyboard that has both types of keys, especially considering the extra attention Corsair paid to the dome keys. Their design choices kept them from sharing a common basic layout with existing mechanical keyboards and merely using aluminum as a top layer and throwing in the extra red keys - which are completely unlike any custom keys I've ever seen, with their checkered texture and angled tops. Many existing mechanical keyboards are sold under more than one brand with little to no difference other than the logo.
As many keyboards as Corsair is planning on selling, might they actually pay a slightly lower price to Cherry than they currently do per key if they ordered enough to do all keys on every keyboard? A larger quantity discount? Heck, that's probably reaching, but I tend to believe them when they say they chose the mixture of keys for functionality, not cost-cutting.
I might be being naive about that!
(BTW - I have some reason to believe that a theoretical firmware update won't cause any issues with sensitivity. Sorry for being so cryptic on the subject... )