Maybe it is not "everyone" else taking your posts as "attacks," perhaps you really are rather negative!? This gent brings up some good points.
To answer the thread....
Going rate for private lessons varies on city and teacher. Around Seattle $50-75 an hour is game. Colorado can be a bit pricey especially up around Vale, Boulder etc. Some good players up there though, may I ask who it is?
It is my honest opinion that private lesson's are a great way to learn regardless of level. You may want to ask him if he offers any discounts on multiple lessons? I offer that to my students, that if they pre pay for X amount of lessons I cut them a bit of a break. Not everyone does it, but it never hurts to ask.
Good luck,
Jake