Not a dumb question. This processor is about $300 alone, if you like the configuration as us it's a great deal. Where the savings are lost is if you want to throw in a good video card as you'll also need to replace the power supply.
i7 3770 is $260 from Microcenter everyday. IMO, this is a okay deal considering 8GB RAM and okay GPU and overall limitation of prebuilt PCs.