My experience with basic SEDO parking was really bad. I here their premium program is better. I think you have to pay to park at Godaddy and I have never heard anyone say it was worth it. I park at TrafficZ and recommend it, but I think you need to have 100 domains to open an account. You might try Noomle.com if you have an adsense account. It works pretty good and you can add content and optimze pretty well.
27,000? Maybe, but I check with Google and they say about 49,000, but that is the broad match. Phrase match is about 40,000 and exact is 33,100. I suspect most of those exact searches may be people looking for a definition. But Google does say the average CPC is $0.34 which I don't think is bad for a keyword like this.
But here is what may be bad... do a search for "Insinuate" at Google and Yahoo and I don't see any ads come up. So for parking you may want to optimize it for something related... maybe "insinuate clothing"? Good Luck!