Is EVDO worth it?

As I've mentioned, I recently upgraded my computer from a 12-inch PowerBook to a 15-inch PowerBook. This opens up a lot of new possibilities for yours truly, but it especially opens up the possibility for a PC-card thanks to the PC-card slot that I haven't had since my PowerBook 5300cs, oh so many years ago. It's a brand new interface, waiting for me to buy gadgets and shove them in there, but most of the available gadgets are things like WiFi cards and Firewire / USB cards that I don't need.

The one thing that I have been contemplating is getting an EVDO card so that I can have high speed wireless Internet access wherever I go. The only draw-back is the expense of the service. Om Malik even has a post up recommending a specific card that works best with a PowerBook, if you simply bother to tweak it a bit. However, the cost factor is still there. I wonder if I could grab one of these EVDO capable access points for my home and talk my wife into only using the Internet when I'm home. If so, the possibility of canceling my cable connection and replacing it with EVDO might be an affordable jump to make.

In the meantime, I make due by connecting via bluetooth to the internet via my Motorola Razr. It's slow, but it gets the job done. Do you plan on going EVDO as soon as you can? Or do you recommend some other PC-card gadget that I can shove in this vacant slot, taunting me with its presence?