Maybe so, but that is a pretty broad brush point. Given enough time between the purchase price and the improvements it could be meaningless.
I'm not sure I agree, unless we are disputing how it is they figure out that 'purchase price amount.'
If you purchase a house for $100K, and 30 years later you have $400K into it with interest expenses, repairs, room additions, gardening, insurance etc., I would not consider that 'meaningless.'
However, if they consider 'purchase price' to be 'no money down' or $20K and 30 years later you have $80K into it, then, yeah, I would agree it's 'meaningless.'
And the figures for owning cars is pretty clear... From Retire to Simplicity: "The Department of Labor's Bureau of Labor Statistics calculates that car-ownership costs are the second-largest household expense in the United States. In fact, people in the average household spend almost as much on their cars as they do on food and health care combined for their entire family -- about $600 per month." http://www.retireearlylifestyle.com/retire_to_simplicity.htm
And from Cost of Working: "Your second car costs you about $7,200 per year, and assuming state and federal taxes take 30% of your income, you'll need to earn $10,300 just to cover the costs of car ownership. A daunting thought indeed." http://www.retireearlylifestyle.com/cost_of_working.htm
Everything has a trade off... 8)
Akaisha
Author, The Adventurer's Guide to Early Retirement