> Sun or Digital (DEC) and someone like Dell.

In a time frame like 1999 to 2002, much more broadly than that, just the increasing gap in cost vs what you would get between buying any hardware+OS package from a legacy Unix-like vendor (Sun, DEC, SGI) and doing your own thing on a FreeBSD, OpenBSD or Linux on x86 hardware.

Dell was obviously a top choice, but by 2000 or so, Linux or FreeBSD had become good enough that you could do exactly the same thing for a fraction of the cost and run it on x86 hardware you had purchased from either Dell or one of the top 5 or 6 Dell-competitors.

As compared to, as you say, sitting through sales meetings, price quotes, revisions, a long slow and arduous process to arrive at a figure where you come to a conclusion "yeah you can spend $60,000 on these Sun servers or we can buy $20,000 of x86 servers and get creative with our own software stack to do the same thing in house".

At a certain point 1U and 2U server hardware got fast enough on boring standard x86 single or dual socket motherboards from Taiwan, in the era of like the 1.2 GHz Pentium 3 with 512KB cache, that the performance was pretty damn good and the machine cost a fraction of what the equivalent Sun or SGI rackmount machine would cost. This is in the era before a multi core x86 CPU existed. And you could be sure that its BIOS and motherboard were already OK for use with a current Linux kernel, we're talking about motherboards from Supermicro, Tyan, intel whitebox reference server boards, etc.