I am going to Bangkok and Tokyo (multi-city from 12/18 to 1/3). I wanted to book everything with miles from NY but found no availability so I booked (with money) a flight from NY to Minneapolis and back and then booked (with miles) the Minneapolis-Narita-Bangkok flights there and back with 150'000 miles... Seems a little steep but I've been accruing them for a while and never using them so i wanna start to ripe the benefits, you know?
Yes I would pay for that service IF it was priced affordably AND IF it didn't require a yearly subscription (since I probably would use it only one month out of the year if at all)