Ask HN: Why is AWS so popular despite being impossibly complex?

Was planning to move to AWS & consolidate out server from Linode and Digital Ocean. OMG, it's been like the month from hell! I've had to spend incredible amounts of time trying to learn AWS & now I have a $1900 bill (highest Linodo bill was $150) b/c I checked the dedicated instance box I was playing around with.

I can't put into words the kind of frustration AWS creates compared to Linode or Digital Ocean. Why the hell are they still so popular?