Glide bombs exist.What I mean Is that MKI or rafale have to be able to carry very simple munitions very close to the combat line or from time to time deeply in the enemy theater.
Gaurav, saaw etc.
Cheap, mass producable.
Combined production of brahmos + rudram 2+ rudram 3 will cross 1500+ yearly within 1 year of full scale war.Once again problem is not to be cheap or not. Problem is how many every day : to give solutions to the IAF every day during a long high intensity war. To be able to make enough munitions. 300 bhramos a year are only one brahmos a day. How can you help every day your trooper without weapon for that. The same for Bhramos or scalp or meteor or mica or rudram.
Along with many other cheaper weapons, lime Saaw, Gaurav glide bombs.
We are also working on cheaper stealthy cruise missile.
And its not like su30mki is the only thing we have to strike targets.
If it's risky for su30, we have other ways.