I have fished with them several times (customer's reels) and have to say they are indeed awesome but whether they are worth the 700+ price tag is really the buyer's opinion and nobody elses. If you flinch when you buy one, or have to ration out your lunch and gas money for the rest of the week, then you probably shouldn't buy one.
IMO, the best all around inshore spinner is still the Shimano Stradic, either the regular version of the Ci4. The Ci4 is much lighter and smoother for the little bit extra.