The reason your other lists forbid discussions about pricing is so that they do not run afoul of the FTC rules on price fixing. The FTC can make a finding of price fixing even when there is no written agreement among the competitors, using "circumstantial" evidence, which may include any discussion among competitors regarding pricing.
From the FTC website:
http://www.ftc.gov/bc/antitrust/price_fixing.shtm
"Antitrust scrutiny may occur when competitors discuss the following topics:
- Present or future prices
- Pricing policies
- Promotions
- Bids
- Costs
- Capacity
- Terms or conditions of sale, including credit terms
- Discounts
- Identity of customers
- Allocation of customers or sales areas
- Production quotas
- R&D plans"
It is probably safe to discuss pricing in general, but if there is a discussion among coaches about pricing for coaching, you may be running some risk.
Mariette
CIRCULAR 230 NOTICE: Under IRS regulations, I must inform you that any U.S. tax advice contained herein was not intended or written to be used, and cannot be used, by the recipient for the purpose of avoiding penalties that may be imposed under federal tax law.