Triples can be found on top quality frames and component groups.Triple tends to be mainly used on mountain bikes or on lower priced bikes such as hybrids etc..
Yea, I have hills like that as well as 5-10+ mile nonstop highway grades (~6-7%). If I ever think of a new drive train, the high gears will be almost as important to me as the low ones.Thanks Camilo, That was a great indepth review of the differences between a double and a triple and the current trend of using a compact cassette. I use a triple and use it regularly as I ride in very hilly terrain of Trempealeau County WI with many hills 12 - 17+% grades. I had been considering going to a compact on my next bike but it may not be the advantage that I thought. Thanks again.