One of the big things with me is a good warranty. I can buy a cheap $20k car and get a 5 year warranty, or a $15k sled and only get 1 year (unless I pay extra for extended). The main reason I bought my first new sled in 07' was because Cat had a 4 year warranty promo for no extra charge. I paid under $12k out the door, spent more than that in the previous 4 years keeping the old iron running. I like all the bells & whistles but give me a good warranty to keep it all working without costing a small fortune.