B for bargain in my experience, my latest B-grade purchase was a GTX260, it came in a box but had no power leads, manuals or driver disks, no big deal, I soon sourced a manual from the LeadTek website and bought a couple of spare PSU connectors from Oc/UK and I got upto date drivers from Nvidia's website (and would not have used the driver disk even if it had one as they would have been old out of date drivers....)
The card has a 14day warranty with Oc/UK as its B Grade but still has a 2 year warranty with LeadTek.
The pricing is a bit annoying though, I wanted to buy another B-Grade IP35Pro motherboard last week having previously bought one (as B Grade) from Oc/UK about 8 months ago for around £35 which was indeed a bargain. Last week they were adertising B Grade IP35's at over £130! ? today, I've just had a look to see its now £49 - which is still imo a good price for an IP35 Pro, I wish they had sorted the prices last week....
That said, the £36 Gigabyte G31M-ES2L I bought is superb and has been running my e5300 at 3.46Ghz since I built the rig!
In short, B-Grade is good.
