Another falsity as the F35 doesn't have the loiter capability that the A-10 has which is a key point when providing cover for an ongoing ground operation. If you are proposing that the C-130 Specter gunship act as the primary replacement then the operations costs must be taken into consideration.
If its safe enough for a A-10 to loiter, then its safe enough for tankers.
If its safe enough tankers
Everyone can hang around.
As for cost, to bring over an entire A-10 squadron in addition to other aircraft that an A-10 will need to perform the mission is more expensive than just having
You still need SEAD aircraft. You still need fighter cover. You still need tankers. You still need all those other aircraft in the theater to make it safe for the A-10.
When the F-16's\F-15E's have already proven time and time again that they can do the same job as A-10s AND they can protect themselves....whats the point of the A-10?
A-10's seem cheap when looking at them in a vacuum.
"They are cheap to operate", "Rounds are Cheap", "They are paid for"
From services perspective, its how much it costs to perform the mission.
A-10's will ALWAYS require the presence of other aircraft types. So the cost to operate the A-10's in theater will always be "Cost of A-10" + "Cost of other Aircraft to keep it safe".
Not cheap.