[ikeboy]

The problem with the distinction between good and bad debt is that money is fungible. If you have some amount of "good" debt, then every penny you spend on "bad" depreciating assets is money that could have gone to pay down the good debt.

Conversely, if you have bad debt, every penny that goes towards paying it back could instead go towards the kinds of purchases he endorses using "good" debt for.

There's no principled distinction between the two.