The average cost of food for the larger monitors far exceeds the cost of an akies.All savannas are wild caught and most of them do not live past the first year.
Now you said you do not want to spend 200 on an akies but the cost of that 50 savanna,you will need a cage (monitors do not do well in fish tanks)100-200,you will need to feed it 1000 cricket a month what is that about 100 bucks and then don't forget the electricity bill to heat that large enclosure
What are you plans for when you grow tired of have a large lizard that bites,tail whips,and craps on you everytime you try to hold it,monitors do not become tame like most people think.Do yourself a favor and rethink the AKIES
GREG