For just a normal training session, I think $60 for an hour is fine or I actually like $30 for 30 minutes a little better. But that's more because I think working on 1 maybe 2 things at a time is most beneficial.

If I were to have a training session with someone like Mark Baker or Mo Pinel that included a ball I'd be willing for $300-350

We used to Bring Fred Borden & Ron Hatfield in to do Full Day Clinics at $150 per Person

I think this is a Very Fair price for 2 Gold Coaches,

I have seen Clinics in my area, With well know Silver coaches go for higher then that.

$295 a day or $450 for 2 day.  Brunswick had a 2 1/2 day clinic for $900+ last year In a local center.

This is one reason we do ours as affordable as we can. we always fill them.

We now bring in just Ron twice a year (Fred is Semi retired) and have smaller semi

private lessons For the same price you get about 2 hrs with Ron and more on lane

instruction. We still do a Full day clinic for $150 with Ron and a Silver coach

I Have seen the rates from $30 an hour for a bronze to $125 an hour for a gold in my area.

That is why I promote Ron Hatfield twice a year I know how good he is and how he

has help me to the next level. Ron is from the Columbus OH area if you ever get to OH Look him up  you will see how great of a coach he is.

I have gone to a few coaches in my day. Fred Borden, Jeri Edwards, Ron Hatfield,

Andy Parker, and I have also work and have been trained by them in coaching.

I have been to Kegel training center and Mike Jasnau in Reno all are great coaches.

I have learned something from each one of them for my game and my coaching

Good luck in your search for the right coach

As Fred Borden ask's  What is the 1st rule in bowling? answer; there are no rules. when it come to coaching do what works for the student!

Just my .02

I am so lucky. Where I live I have a coach that only charges me about $20 for hour and a half, maybe two hours. He is a USBC Silver coach and a BJI Top 100 coach. Amazing coach and a great person! He has helped me a lot. I've been bowling for almost 4 years and my average was 195, 200. Now with him I am now a 215 avg bowler and I still have a lot of room to improve my game. Those 20 bucks has to be the best investment I've ever made lol

Good coaching will save you thousands in bowling ball purchases and games of practice . . notice I said GOOD coaching. 

I attended an IAB Bootcamp a few years ago.  I think it was around $300 at the time for 2 full days (16+ total hours) of classroom and on-lane instruction from Belmo, Diandra Asbaty and Ron Hoppe.  Also included video analysis.  It was a great experience.  If I lived anywhere around Seattle I would be visiting Ron as often as I could, he is exceptional!

I've also had the opportunity to learn from Mo Pinel when he comes through town. I always enjoy spending an hour on the lanes with him!