I would be willing to bet a large amount of money that the large majority of successful businesses are either bootstrapped or use traditional loans as funding.

I would be willing to bet a large amount of money that the large majority of successful businesses are either bootstrapped or use traditional loans as funding. The stats don't work out any other way - several hundred thousand new businesses are started in the US each year, but only a fraction that number could possibly be angel or VC funded. Your perspective only applies to a narrow slice of SaaS businesses.