6 years falling apart

Deven and I have been married for six years. No, we aren't falling apart...all our stuff is. It seems everything is old: our towels are tread bare, our sheets have holes, I have broken half of our glasses, and yesterday my favorite spatula literally broke in my hands. Last week I finally made myself get new pillows (the old ones had actually been slept in half) and new sheets. I have never slept so good. Why is it that 1. Everything breaks at the same time and 2. I don't hesitate to spend 20 dollars on a movie, but 50 dollars to sleep better makes me sick? So weird...