The reason WeWork is great is because investors are subsidising our memberships, just like Uber is cheap because investors are shovelling in cash. WeWork has the potential for profitability if you take away the ridiculousness but the ridiculousness _is_ WeWork: co-working spaces have existed for years, companies like IWG (Regus) offer the same as WeWork and they're profitable... because they don't have a full time bar staff, a live DJ and a skateboard ramp in their lobby. Yes, the new flagship WeWork in London has a skateboard ramp and live DJ in the lobby. When WeWork fails (and their spaces are scooped up by the mature players in the market) the ridiculousness will disappear and we'll be left the same space that has been available all along.
I like WeWork, WeWork has value, but ping-pong and baristas don't make for 10x valuations.