It depends on the star level and the chain.
Hilton, Sheraton and Marriott are usually $9.99 daily, however this varies by location. I've been charged up to $12.99 at one Sheraton and as low as $4.99 at another Sheraton! Then there was the Norwalk Marriott with a free WiFi.
Courtyard By Marriott and most of the other Marriott brands except for the higher end Marriott Hotels and JW Marriott Hotels & Resorts offer free WiFi at the very least.
Holiday Inn Express offers free WiFi on top of the free breakfast.
La Quinta has free WiFi.
Extended Stay America is either free or very nominal ($4.99 / Stay!).
Generally the higher star hotels believe if you are willing to pay $300+ rack rate then you won't mind another $9.99 which is almost %90+ margin for them. Lower stars are offering free net to stay competitive in a very busy segment.
The $99 for a meeting room is about right actually. It's probably negotiable but it's not really outrageous, not until you try to do the same thing at Marriott or Hilton and they quote you $150 - $300 communication packages!