Yeah true. I guess with me I feel that if they're making millions they might as well use the best cameras
Problem, even if you remove all other factors from the equation, him spending more on cameras doesn't actually give us better videos - they don't increase the quality or quantity of the content produced, just the raw pixel count. If something is funny a 8k, it'll still be funny at 1080p.
If you bring the other factors in, it actually makes it preferable to use the cheap DLSR or entry grade 2k res camera. Having less raw data to work with speeds up turnaround times on ingest, editing and uploading, lets the editors focus more time on iteration or graphics or whatever editions they need to make over letting the machine cook a test color grading profile on 16x the data, and generally just lets them do the shit the audience cares about. These savings either go into having to be less aggressive about merch shilling, reducing merch margins to make it more affordable, or additional useful production staff to increase content cadence (He's already way too high on that, but matter of principle n all) all of which is actually of value to the audience.
All a crazy high end grade camera offers is a slightly easier time doing very invasive editing actions, like digitally inserting CGI stuff, nothing that LTT actually uses, and theoretical future proofing - a lot of late 90's early 2000's media is stuck in compression hell because digital video can't really be remastered the way film can be. So you shoot way beyond what's viable now, and it'll probably be viable in the future. But this makes basically no business sense for a channel primarily focused on reviews and builds. Nothing LTT does will be of any real entertainment value in twenty-five years, and as far as historical or archival purposes go for sentiment on old tech, the media quality really doesn't need to be above "legible", 1080's gonna be fine forevermore.
LTT's still making what I consider to be a fairly rookie business mistake, which is that assuming increasing revenue on a given product means you should spend more on the production of that product in all aspects. Cheap materials become luxury materials, "good enough" assembly becomes computer analysis of every seam, the box becomes a brightly colored painting plastered with beauty shots and marketing pitch. But if the product is a thermos, your just wasting money on shit that doesn't matter most of the time. It's short sighted at best, and stupid clout chasing at worst, to just spend on something for the sake of spending on it.