[csmuk]

Actually I use a ThinkPad and an HP Z820.

I work in financial services sector and we serve desktop and web apps. Bar large businesses, we see a LOT of home built and OEM PCs.

I was involved in the family business OEM sector for the best part of 20 years as well from a hardware perspective. There are two types of professional: careless and obsessive. The latter build their own. The distribution I saw was about 40% OEM/home built to 60% big manufacturer.

[MrScruff]

Do you have any non-anecdotal numbers? I had a quick search and couldn't find any.

I wouldn't class a professional who builds her own PC as obsessive, I would just classify her as someone for whom the time/money divide is biased towards available time. When I used to home build in the 90s I was in the same bracket. Nowadays it would make no more sense to me than doing my own plumbing.