The wife and I went to Crowe Custom countertops today in Acworth Georgia . This place must have 500 slabs of granite on hand if not more ! We walked around for a while just taking it all in . Spoke with a very knowledgeable gentleman and he stated sealers have progressed a lot in the last 5 years . He said they apply a 15 year sealer as standard business . They also have a 25 year sealer . So that eased the wifes mind on granite . We eventually came across a steel gray color that was stunning . We both liked it as soon as we saw it .
A little more than we wanted to spend at $45.00 a s.f. installed but you only live once

I asked the salesman how they installed their under mount sinks . He stated they go the extra mile and route a groove in the stone so standard under mount sink clips can be used in addition to adhesive caulk . I liked the sounds of that . He stated they fix competitors sinks all the time because they do a crappy job and don't route the groove for the clips .
We haven't signed a contract yet mainly because we are moving this coming Friday plus we want to shop around some more but we liked what we saw at this retailer .