I would not buy it. The main selling points of a diesel - longevity, durability, economy - are becoming negated by ever better gas engine performance. This coupled with much higher purchase price and much higher fuel costs make it a non-starter for me. I was eagerly awaiting a diesel Wrangler Unlimited, but once I crunched the numbers I couldn't make it make sense. I'm sure I'd come to the same conclusion on a Tacoma or Tundra. If we were having this conversation in 1990 - yes, definitely worth it - in SPADES. Not today.
I have to agree with this. We need to face up to the reality that the things that make a "traditional" diesel engine attractive - (1) simple design, (2) ability to use cheap, less refined fuel, and (3) good fuel economy - simply don't apply to modern diesels. Modern diesels are every bit as complicated as modern gas engines, which negates point no. 1, they require expensive, highly refined low-sulphur diesel (or, if the engines don't, the EPA does, which amounts to the same thing for most of us) which negates point no. 2, and while the complexity of modern diesels has eaten into their MPG figures, correspondingly gasoline engines have gotten more powerful and more efficient, which negates point no. 3.
The final point in favor of diesels has been that in many undeveloped parts of the world, diesel is more common than gasoline. I don't know whether this is true anymore but even if it is, for 99% of the people on this board, that's a non-issue as we will probably never be traveling in those parts of the world in our own vehicles anyway, and for that matter, isn't gasoline becoming more common in developing countries? The last developing country I was in was Costa Rica in 2011 and although there were diesel vehicles everywhere, every station that sold diesel also sold gasoline.