So, we all know eldar and tau have flying tanks. Now the imperial guard have their valkyries and vendettas. And sooner or later marines are gonna have their plastic thunderhawk. Not to mention the tantalus lander for blood angels, if rumours are true.

So my question is, is 40k evolving to a point where aerial combat will be mainstream? Could we one day reach a point where we can field an army of nothing but aircraft? Is this good for the game?

What are your opinions?