It definitely wouldn't be worth it to get a 100 x 50 cage then.Stick to the Alaska for now,until you're ready for a more significant upgrade that would be worth the money
Rabbit cages do have potential,but it does take some effort and time,and with the 100 x 50 cages and similar sizes on the market for hamsters already it does make those sizes of rabbit cages less valuable as hamster cages.