You guys have really cheap dealership labor costs! When I called to inquire about it, the local dealers wanted between $900-1100, plus $300 extra for the water-pump and thermostat (all parts and labor)...
I did the swap myself in the garage while it was 114 degrees outside (literally!). With breaks for water and cooling down, a buddy and I had it done in about 9 hours altogether. We did all the components (idler + tensioner), water pump, thermostat, timing belt, and spark plugs. Cost was around $300 and I got all the parts at AutoZone. I worked there for 10 years through high-school and college and have never seen an issue with the Dayco products.
With 120k miles, the OEM timing belt looked a million times better than the OEM drivebelt. The water pump had a small weep and was a little tight, but still working fine. I don't know if I'll run the Dayco for that long (I bought the truck used with 90k and didn't realize it wasn't done or that it even had a belt... I drive Nissan's which mostly have chains), but a 400 mile drive from 1500' ASL to 8800' ASL without a single hiccup leads me to think she'll be just fine!