I definately do. It is really stupid in life to NOT consider the total costs of your decisions. However, I remember to consider the cost/benefit of intangibles. Suppose, vehicle X has a TCO of $10,000 over 5 years and vehicle Y has a TCO of $11,000 over 5 years. I don't just automatically choose vehicle X because it is cheaper. No, I do my best to give a value to the intangibles. I estimate the value of things such as (a) will vehicle Y better fit my needs, (b) do I like the look/feel of vehicle Y more, (c) will I be safer in vehicle Y, etc. If the intangibles give vehicle Y at least a $1,000 bonus over 5 years, then ultimately vehicle Y is the better value even if the TCO is higher.
Disclaimer: the numbers in the above paragraph do not reflect any specific vehicles, nor do they reflect my opinions nor the opinions of ATOT on the issue. I personally buy a car to use for 10 years.