That being said, I've seen newer, less "hip" flex spaces open to try and target that market.
If it's your second home that you have your morning coffee in and have a personal office that you do non physical tasks on, and occasionally have a friend or cofounder over for a beer you're looking pretty good.
Think of it as "sexy startup office as a service."
Not saying it's a worthy or necessary service this world needs, but I think that's the value they provide and what companies pay for.
The prices are eye-watering, however, and don’t seem to come down much with scale. (A three-person office is about three times the price of a one-person office – at least when I last checked.)
Getting an office lease is a huge process with a stack of contracts, pushy agents, ridiculously long leases, misleading prices, hidden costs, furnishing, and establishing all the necessary services. And if you're a small company, the owners are expected to personally financially guarantee the lease.