I think you're drastically underestimating the cost of a crash and the need for a good backup. If you go down, how many customers may you lose for life? What

I think you're drastically underestimating the cost of a crash and the need for a good backup. If you go down, how many customers may you lose for life? What do you tell those users if you happen to lose some of their scheduled tweets? How many refunds will be requested? Not to mention the time it will take you to bring everything back to life on a new server.