[svandamme]

you can't beat the build quality of a dedicated workstation or the inherent performance of the components, it will be faster then a 4 grand custom pc... Those things are designed with much care to go like stink, and to do it reliably, 24/7...years on end.

Sure, some can do similar things cheaper, but there will always be a drawback somewhere..
If it's business critical, then you want it to work reliably..
And you want to have reliable supply of spare parts to fix any possible hardware failure without guessing if the replacement part will require some kind of effort to get going..