To quote Prince Valerian, "I simply have too much invested in this operation to let it fail." The investment being close to five digits worth of money and a LOT of time. LotC will be done. Or it will kill me. But that will be the only reason it's not completed if it isn't.
While I haven't spent THAT much monetary-wise on my own project (buying a whole new computer may or may not qualify), there were so many times I deliberately wanted to avoid working on my project even though I knew I had to finish it or it would eat away at my ego. At one point I was contemplating handing over the master outline to Lavarinth in case I died (obviously this didn't happen, but it's something that did cross my mind could happen).