Typical features of a customer center:
It occupies dedicated building space that is not used for other company functions; it may be isolated and off-limits to most supplier employees.
Security is a key feature, allowing customers to bring work in progress to try out technology.
Customers control what is done in much of the space, using the supplier facility with their own needs in mind.
The space is not 'rented' to customers; costs are carried by the supplier, which hopes to profit by future sales of systems and components.