This particular theory I've been practicing for some time, but I finally figured out how to articulate it correctly. I buy cheap stuff. Let me explain more.
A good example is my coffee maker. I bought it over 6 years ago, and it cost me under $20. Now it's great I can say I got so much time out of it for so little (it gets used daily), but that's not the point of buying a cheap coffee pot. The real point is to learn what coffee pots are all about. Learn how they work, how to maintain them, what features I wish my cheap coffee pot had. So that the next coffee pot I buy can actually be a more expensive, I know what I want out of it, and it will save me money because I made all my mistakes on the cheep one.
Now with the coffee pot I've been lucky. If I had broken it in the first month though, it wouldn't have been a big deal. I recently applied this same theory to a blender. The one we bought was $15 (Hey we had a coupon). So far I have learned that, with my next blender, I want mad blending power. I learned with this cheap blender what someone else I know learned on a $50 blender. When I decide to get a better blender I'll know more about what I want.