I used to buy from newegg exclusively, but now not so much. I shop around and get the best deal which is becoming more and more rare at newegg.
My last PC, I ended up getting CPU and SSD from Microcenter, mobo from newegg (refurbed), memory from Frys, video card from Amazon, power supply from the compusa closeout I still have, the case from a clearance from bestbuy, the blu-ray drive also a clearance from BB, and the TB hdd from ZZF.
For the most part all places with decent enough customer service where I could return things if needed and did on a couple of items like my video card.
Newegg is good though for the images and sometimes reviews.