Depends on what you're towing. If you're talking about a 3500 dually over a 2500... there's a world of difference between the two. The advantage of a SRW 3500 over a 2500 is about 900 pounds extra capacity in the bed. If you have a 5th wheel the tongue weight comes into play. I thinks a 2500 has a bed capacity of about 2250 lbs and the 3500 SRW has a capacity of 3150 lbs. I think the towing capacity is the same between a 6 speed and an auto these days, so that doesn't matter. Bottom line, depends on what you want to tow. I was happy with my 00' 2500 but I love my '04 3500 SRW LWB!