Geez, I think ~$300 is a good value for this switch. You're not just buying a brand name, you're buying the company's ability to support it as well. Someone early in the thread mentioned tech support that were in between big rocks and small rocks in ability. The person from Dell that responded had some fairly impressive credentials - "CCSP, CCNP, RHCE, Cisco Firewall, VPN, & IDS Specialist" The other thing to look at is service contracts. For me, at least, it only costs $40 to put a three year, 24/7 4 hour replacement contract on the device. A lot of small businesses can't afford to have spares sitting on a shelf, so this is a pretty good value.
If you're using an extensive configuration, this isn't the right switch to begin with. Dell is trying to hit the market segment where customers might want to see some performance statistics, maybe bond a pair of ports for an upstream connection, but other than that, they just want gigabit performance. They don't have a network management system in place. When they want those bells and whistles, they move up.