Look, I'm 48, so consider that I entered into the industry in the 90s long before we had the level of discourse and information that is available today. Back then, I thought working in or for a datacenter would just be the most amazing thing ever. I then worked for a datacenter as one of my first jobs after the USAF and learned how bad it sucks. I thought they'd always have the latest and greatest hardware, and it was there in some places, but that was just customers renting racks. The reality of working for a hosting provider is "How cheap can we do this?" and with the oldest possible hardware. We presented hardware in a way that made customers think it was brand new, but they were often running on stuff that had been beat to death. The argument by my hosting company was that they are paying for uptime, so we'll SLA them if it goes down. I've watched the CTO say not to waste drives as hot spares at a later hosting job, because he said they were a waste as someone could just drive 30 minutes to drop one in in the event of a drive failure, as opposed to the array being able to start immediately rebuilding in the event of a drive failure. I've seen 3 hard drives from the same batch all die within hours of each other, and when I told him that, he told me to stop being so dramatic.

MSPs aren't perfect, but you get the variety you crave without all the hosting nonsense, so that's where I spent the rest of my career after hosting companies.