I'd say worse than medical. As long as it works and doesn't fail, no one will give a fuck about medical hardware or the condition it's in. Just look at your average GP's ultrasound, it's probably older than the GP themselves is.

Gambling however, you constantly have government auditors and the tax office crawling up your literal arse to make sure you don't cheat the gamblers, or worse, the government out of their money. And in some cases, add the mob or other criminals on top who also want their cut.

Yep, governments can change, and the new one can decide to crank up the regulation too.

Pretty sure it's your figurative arse but potato, pot-ahh-toh

Literal. Gotta make sure you're not hiding any numbers in there.

Gambling is shady to begin with. It’s easy to say that all businesses only care about money, but gambling is pure greed, from both the customer’s and proprietor’s perspectives. Sure, there is greed in medical but gambling is ONLY greed.

It's worse than medical devices, at least for the final machines and software.

For components in the path of money flow (payment processors, RNGs, hosting, etc.), it's similar.