I used to make my own spaghetti sauce and I thought it was worth the effort. Then one day, a friend asked me if it was Ragu. I was offended, and decided I would try Ragu and prove to myself that my friend was an idiot. But, I found out that Ragu wasn't that different from my own recipe. So, I stopped making my own.
I make it myself usually. I do keep some Classico pasta sauce in the pantry for quick meals. That is the best bottled sauce I know of but I actually buy it exclusively to get the real mason jar with real sealing screw-on lid. I have a cabinet full of those glass jars. Those and Smucker's natural peanut butter jars are my favorite containers for left-overs to refrigerate or freeze.