If you think about it though adding to your mining portfolio just gets easier with asic once its fully adopted. For instance if you wanted to get into mining right now you could do about 2gh/s with about $1600 of brand new hardware and a lot of power being used but even at current prices for asic (from the BFL Jalapenos that are being shipped) its about $50 per gh/s with a huge power draw improvement.

Like was said before the market will find a balance, but nothing will really change as the barrier to entry would be the sameish in my opinion. If the goal is to get into mining asap though you can't really go wrong with making a gpu rig and switching to litecoin. You'd probably make your money back within 6 months unless the wheels fall off.

But I'm new what do I know.