I think this is doubtful because of the simple fact that some manufacturer will come in and undercut the price.

This will be the start of a "price war" and, eventually, prices will stabilize at a point where all manu's prices are roughly equivalent for equivalent product.

I'll grant that margins on the top-end bikes are higher in total $ than the low-end bikes, but this is expected. It's the same as cars. Manu's make their money on the top end.