Ceramic? Stainless?

Ceramic.

Some no-name sinks will be fine, while others may be warped, or not be fired as well, or have hidden flaws that show up years later. A sink should last for decades, and trying to save bucks may be a false economy, especially if the labor or complexity in replacing a defective one would be significant. I'm frugal, but some things I don't try to save money on. If you figure the cost of a sink spread out over a 20 or 30 year time frame, buying the cheaper one may do nothig more than allow you to buy one or two more lattes a year. If you buy a name brand sink, you can probably be assured that they will stand behind the product, and be around in the future if you have issues with it.

Kudzu9, thanks for many great points. I guess I'll go with the Kohler over the no-name brand the granite yard is selling.