Price points?

I've heard several people make the suggestion that now is not a good time to buy a Powerbook because Apple will be releasing an update soon. However, for those of us on a budget, will the updated Powerbooks come out at exactly the same price points as the current crop, or will they be a bit more expensive for a while and then slowly decline as the system ages?

From what I gather, the next Powerbook update won't be anything huge, so might it not be a good idea to get one now before having to pay extra for the new model?

They tend to be lower or similar in price...
Besides, if new ones are released, the current ones would drop in price, meaning you have a choice:

-pay x now, get current model
-pay x later, get latest model
-pay x-something later, get now-current, then old model

So it pays to wait if you can. If you need the machine right now, get it. If you can hold on: hold on to that cash...

Especially since you can currently get an iBook at similar speed for much less...