None of my bikes are worthy of a cable lock no matter how long it will be unattended. I have one of those folding ABUS locks that will do much better in an attack vs a weak cable/lock combo. It has a mount that will attach to the bottle cage bolts on the frame. Hardly noticeable when riding aside from a little rattling. I have first hand experienced how easy it is to defeat a cable with a set of small bolt cutters. Buddy of mine had locked his bike to his car rack and his gf had left with the key out of state. I pulled my small cutters out and in one snip, it was cut. We both stood there in disbelief. This was a decent cable mind you, in one cut, less than 2 seconds, and I could have been off with that bike.
Unfortunately things are not how they used to be and the world is a different place now. No sense in losing a prized possession or even a beater due to an easy theft. Make them move on to the next one.