Remember that load-cycles are not a direct indication of battery health. I have two MacBooks that are the same age. One has 187 load-cycles and still charges up to 5300 mAh+ (more than 100% health), while the other has only 5 load-cycles and only charges to about 5000 mAh (95%ish). That Apple battery info page is a good read, and explains why batteries that get a healthy charge and discharge every few days fair better those who remain constantly charged.
Its good that you're taking this consideration before you kill the battery.