I'll buy your premise, but not clear why that model is better than the dx7500 I based my configuration on. All the model numbers are confusing. Don't see any names.
Doesn'gt seem to have RAID available. Even without that loks like 50% more money. That's a huge increase.
The ones on this page are $500-$600 where the one you listed before was over $1000.
What do you need raid for?
I already answered that question. I'd appreciate it if you could read through the posts where I explain what I need in terms of performance, features and warranty and it should be clear why and why a $500 computer doesn't fullfil the requirements.
Back to the original question, what makes this one worth half again more?
TIA,