I'm feeling devilish this morning, and thus....
Aircraft are tools. Pilots can fly more than one type of aircraft. Fast mover pilots are trained on slow moving planes.
So, if the planes that the fast movers trained on, planes that were selected because they were both economical to operate and that shared characteristics with the fast movers that made the transition between planes easier, if those planes were also capable of conducting operations in a permissive environment then what would be the cost of adding more Training aircraft to the inventory?
The pilots could be the same fast mover pilots reassigned to a different platform. ie When a six-pack or squadron gets tasked overseas then that body of pilots is lost to the RCAF/NORAD mission in North America. Regardless of what aircraft they are flying. They can either be flying $100,000,000 F18Es and burning them up at a capital depreciation rate of $10,000 per hour, plus operating costs in $20,000 per hour range or they can be flying the same $10,000,000 aircraft they did their primary training on at a flying cost of closer to $2,000 per hour. That equates to 10 times more air support time over the burning sands of Araby.
Or the pilots could be Reserve pilots.
The low cost aircraft turning circles in the sky also means that the high cost aircraft will last longer, taking more years to burn up their available flying hours.