Also, since the thought experiments appear to be popular in this debate, consider a coma patient. Someone goes into a lingering vegetative state then awakes 20 years later, a whole new set of cells, with no cognitive continuity in the interim. Is this the same individual that fell into the coma? Does the ghost in the shell slumber next to the corpse?
Consider also the enhancement of the upload. Upgrades should be easily available, with vastly enhanced senses, improved memory, and vastly faster cognitive abilities. If you accept that identity can be transferred and you think that the individual is the sum of the parts (memory, feeling, sensation, emotion, etc), will the upload become something more than the original? Man plus? Could I still call my upgraded self me? Is there a fundamental difference between Lasik eye surgery and an enhancement that allows me to see into the x-ray spectrum?
From a practical standpoint, I'd be willing to upload myself for pure vanity. It's likely that my presence in the distant future is not going to be appreciated much by whatever Neo Sapiens is going to be around, but I'm happy being a wallflower in a fantastic future, even if it means being relegated to an old-uploads home, well away from the supercharged post-singularity world of perfect information and infinite wisdom.
Someone should write an AI bill of rights, if this hasn't already been done.