The money issue is a very real concern, imo. If you're a scale person, these don't fit with the 1/60 and cost roughly $75 before shipping to the US (so add another $30 at least usually)...so you end up spending $100+ on it. When the 1/60 Kai comes out, if we assume it's close to the original price for the Double Nuts, that's roughly have the price.
If it's your thing, sure, but I'll probably not be spending 1.5x the price for two of the same thing in different scales, one of which fits with every other Macross toy I have and the other does not.
As always it's personal preference, but i think a lot of people have very good reasons (funding not the least) for passing on things like this.