Excerpt from the Jobs memo:
Second, being in technology for 30+ years I can attest to the fact that the technology road is bumpy. There is always change and improvement, and there is always someone who bought a product before a particular cutoff date and misses the new price or the new operating system or the new whatever. This is life in the technology lane. If you always wait for the next price cut or to buy the new improved model, you'll never buy any technology product because there is always something better and less expensive on the horizon. The good news is that if you buy products from companies that support them well, like Apple tries to do, you will receive years of useful and satisfying service from them even as newer models are introduced.