The whole photography and video editing at home thing is seeing a bit of a surge, probably due to the current trend to always having a camera with you, (a Phone), leading to people wanting more quality and buying a real camera. Even entry level digital "Bridge type" and CSC cameras, a popular upgrade route from a Phone, now have large pixel counts, and offer RAW shooting, (except Fujifilm for some reason), so editing in elements rather than PS itself. probably, can produce some huge files.
As to the desktop market, It seems to be at saturation level, and normal users are retaining their systems for a lot longer, Moore's Law is not as applicable these days, and money is tight everywhere. it's always been the regular user that drives the "upgrade by buying new market".
The way the majority of regular members here, as enthusiasts or even professionals in the business, look at an upgrade is completely different. We are much more likely to buy or build a system, run it for a year or so, then upgrade by replacing components, Operating systems, as we go, Often an enthusiasts system will be akin to the treasured broom, "same one I've used for ten years, only had two new handles and three new heads". This is of course an extreme minority of computer users, in the wider market.
The Business market is governed by the same parameters as the "normal" user market, with the additional factor of the support cost of any upgrade of either hardware or software, so are less likely to be looking at upgrading in the current economic climate.