30" jeans crisis

I don't have a product review today (blame 9 hour meetings and a Friday evening bottle of wine and my favorite pizza place), but I do have a major issue.  The knee of my favorite pair of 30" jeans is going to rip our within the next three weeks.  I've noticed that it's thinning for the last couple of months but after I washed them a couple of nights ago they started to present a couple of small holes.  My favorite jeans are Paper, Denim & Cloth 30" with some cool embroidered pockets.  I know what you're thinking: just go but another pair of the same jeans.  Well, it took me months to find this pair and I bought them at Filene's Basement in Chicago for only $50.  I haven't seen a decent pair of designer 30" waist jeans since for under $100.   32" jeans?  I've see thousands of pairs.  But not 30x32 which is the only size I can wear.  So I ask our faithful readers this question:  How do I stop a pair of jeans from ripping.  Please don't tell me to stop wearing them so often.  That's just not fair.