> I'm glad I use a Hetzner VPS. I pay about EUR 5 monthly, and never have to worry about unexpected bills.

The trade-off being that your site falls over with some amount of traffic. That's not a criticism, that may be what you want to happen – I'd rather my personal site on a £5 VPS fell over than charged me £££.

But that's not what many businesses will want, it would be very bad to lose traffic right at your peak. This was a driver for a migration to cloud hosting at my last company, we had a few instances of doing a marketing push and then having the site slow down because we couldn't scale up new machines quickly enough (1-12 month commitment depending on spec, 2 working day lead time). We could quantify the lost revenue and it was worth paying twice the price for cloud to have that quick scaling.