Can You Still Buy Apple?

As much as I wish I could hop in my trusty time machine and go buy more Apple shares as little as five years ago while the stock was near $88, my contraption picked the most inopportune time to go on the fritz, and my local Time Machines "R" Us is fresh out of parts.

We might as well look forward to the future (and to a day when my time machine is working again), and based on Apple's current price of near $380, should you buy, sell, or hold the largest company in the world?