Hi James: speaking as both, from a member's perspective and as a researcher on the subject, I can say that, for Hotdesk/fixed desk, but not lockable office arrangements, what I've seen here in the Northeastern. US is:
Multi-tiered plans, based on deskn& meeting room usage
Infrastructure included (mailing address, wi-Fi, color laser/fax/scan, coffee, tea & water, conference facilities
Printing, btw, is generally subject to a fair use policy
Basic plans generally allow for 4 -5 days use of hotdesking (based on availability) and 2-4 hrs/mo Conf rm space. Access under the basic plan is generally limited to 8-5 M-F. Plans generally run close to, but under $100. For, say, $150, a member gets roughly twice the HD and Conf rm time. For around $200, there's generally an unlimitedc24x7 plan that includes up to 10 hrs of Conf rm time, with fixed desks ranging in the $225-250 range.
As stated, it's what I've observed in my experience as a member. I'm sure others here will have their own thoughts.
Best of luck!