Yeah - I have a 2500 now, and sold my 1500 to get it (2003) ... but trucks get better and more power. But, I still wonder about if the brakes keep up with the rest.
More than likely, I'd recommend a 2500HD to anyone that asks this question, and would be very unlikely to go with the 1500 ... my only bothersome issue, the 2500HD only comes with Single Cab and Crew Cab at present, no extended cab anymore (although rumor has it, it will in 2015 - January models) Not available until March or April ... would sure like a new truck before next trip departs in February. And the difference between Ext Cab (now the Double Cab) is over $5000 ... and I don't even like the CC model. SO, all things considered, a $5000 savings buys a lot of fuel, or options.
And, right - weight adds up fast when we load it...