UH OH- lemme get the pop corn and a chair LOL...

Actually, there are several points that account for the extra cost on the sticker- more power (tq), better fuel economy, longevity (some over 1 million miles), higher resale value, sound cooler LOL, a lot easier and way cheaper to get more hp/tq out of a diesel than gas, you can roll coal into the yuppies car next to you at the light. I'm sure there's more others will add...