Don't confuse price with value. A corporation is worth the discounted present value of all the dividends it will ever pay. That figure may not be knowable, but it does exist and in this fevered dream world can safely be assumed to be zero for almost everyone. The price, however, can be pretty much anything, reflecting what at least one person is willing and able to pay for it.
It'd probably be a bit more than zero. You can buy the company, fire all the engineers, set the price to $10 per user immediately, watch 95% of users leave, remaining 5% paying $10 per year, and then discount and sum over that cash-flow, and you could probably end up with a value of several hundred thousand dollars in the minimum.
> A corporation is worth the discounted present value of all the dividends it will ever pay.
Only if you can't cash out at the higher price first :), but joking aside I think your point is an important one that gets overlooked a lot when people talk about tech companies.