Levis were the choice of my teenage peer group in the '60s, but since I've had to take financial responisbility for a family I have swallowed pride and worn all manner of cheap K Mart & Warehouse jeans.

The pockets in cheap jeans seem to wear out very quickly however, so I have found that it actually works out cheaper to spend the extra and get a decent pair of Levis, in which the pockets outlive the knees.

Mind you, they are nowhere near as tough as they were in the '60s. They used to come with a replacement guarantee against tearing "for the life of the garment". That always amused me.
"My Levis are torn, can I have a new pair?"
"Nah, the're dead"