To be clear - this isn't an endorsement on my part, just observations of why cloud-only deployment seems common. I guess we shouldn't neglect the pressure towards resume-oriented development either, as it undoubtedly plays a part in infra folks' careers. It probably makes you sound obsolete to be someone who works in a physical data center.

I for one really miss being able to go see the servers that my code runs on. I thought data centers were really interesting places. But I don't see a lot of effort to decide things based on pure dollar cost analysis at this point. There's a lot of other industry forces besides the microeconomics that predetermine people's hosting choices.