What about the prices??? I´ve already seen some leaks suggesting that the Z490 MBs are going to be more expensive, starting at around 200€... It seems MBs are becoming more expensive.

Be not concerned about price...you can always find cheaper mboards that do less, offer less...;)

it doesn't seem to, they are getting more expensive because pcie 3.0 motherboards were cheap to make they were re-re-re-re-re-re-re-fresh of the same old tech pcie 4.0 actually required a layout and components/quality upgrade so.... pcie 4.0 is not going to be cheap until some time or the MB is going to be garbage quality and sacrifice a lot eslewhere amd X570 and TRX40 motherboard are often 400+ for a reason

So...basically if they won't allow to upgrade (as they do most of the time) from Comet to Rocket lake this Pcie 4.0 ready is purely marketing, right?