How big is the pattern plane market in US? Out of that, how many compete above the intermediate level? With these two numbers, you will know how expensive high-end pattern planes will cost.

I do not expect things will change.

But if you can get a good fiberglassed plane, it will last a very long time, or retain it's value. So your investment on it may not be at a total loss. probably better than wood buildup planes.

Think positively.