We are looking at purchasing new Core Gigabit Switches for our backbone. We have price quotes for the Cisco Catalyst 3750 and also Extreme Summit x450. The Cisco switches are 5X the money of the Extreme switches. Are they worth the money or would it be better to spend less money on the Extreme. I know that Cisco has the "name" for this hardware ... but ... is it 5X better? Thanks for your insight!