I don't feel abandoned in the least.
The transition to the Intel CPUs was made 5 years ago now, so about a billion years ago in TechYears. Anyone using a machine for serious work/production likely has an upgrade schedule that would have them getting a new machine within a 5 year span. 5 years should be enough time to set aside ~$1000 bucks for a laptop upgrade, especially when the prices of these machines have actually come down/stayed the same since the transition.
Not to mention, as someone who was anxiously waiting for the G5 PowerBook, (ha remember that one?) the intel CPUs have been a great move and absolutely a key in the success Apple has had in the recent years (along with the iPod/iPhone).
For me personally, I still have a 15inch PB that I loaned to a roommate. And even though my most current machine is the latest refresh of the MBP 15inch that I bought 6 months ago, I still pull out my 12inch PB to use on a weekly basis. Love that little guy.
If you have a need to run Snow Leopard or anything that runs only on the Intel architecture, then you have a need to upgrade, simply put. Otherwise, get the most usage you can from what you have until you need to upgrade.
Well, what about us users that can only afford G4's for the last 2 years? I wanted to switch to Mac after using an Intel iMac for work. But some of us can't afford a new Mac Mini or intel mac in general and got stuck with G4's because they are cheap. Then Apple abandoned us.