Senior people stay for the work, not the campus.
The perks are real and they change nothing.
Ask a senior leader why they left a GCC and you rarely hear about the food or the office. You hear that the work turned out to be execution of someone else's decisions, that the real calls were made elsewhere, that the title was bigger than the mandate. Experience, at this level, is about whether the work is genuinely yours.
This is good news for centres without the deepest budgets. You can't always outspend the giants on amenities, but you can offer real scope and real ownership, and for the people worth keeping, that's the thing that actually registers.