One of the comments was: "The myth is that Dell is the low-price leader. The reality is that Dell is exceptionally good at marketing systems that appear to have a low price to end users, but more often than not, when one actually configures the system with the appropriate amount of memory, drives and graphics cards to be really useful, it winds up costing as much as any other compatible system. In some cases, the price tag may come in at even more than what rivals are charging for the same fully configured system."
I have run into this for years. The advertised price sounds great but it has a low quality graphics card or insufficient RAM or... Something else.
Throw in the lack of local support and other options (like Magnum!