Regarding if it's worth it, I'll add, that, for my "better wheels (fulcrum Racing 7 LG CX)...I lost about half a lb off the cheap stick wheels, which was not very noticeable in riding...what was noticeable was the better stiffness. Power transfer from pedals to road feels more immediate. Could be stiffer spokes or better build, but I think I can tell. I suppose weight could also play a part in that.
Is it worth it? For me the main goal was 2 tire options...but I decided to go a step up in wheel quality too, and I'm glad I did. Just feels nicer.