It's great if you can take your time to get bootstrapped and build something sustainable, but sometimes you're Sidecar and you get Ubered by a company with seemingly infinite backing and you stand no chance, so you have to accelerate or be left in the dust by someone much hungrier. Same with businesses such as Homejoy / Handy where you need to be hugely unprofitable for a while until all of your competition dies out and then it's a winner-take-all market with you being the monopoly and reaping all of the benefits. It's a strategy, at the end of the day.