My two cents. If you have the space and the money go with the larger machine. Keep the seperate mower. I purchased the 2305 because I would have had to add a building to have a mower and tractor. I could have put the wife's car outside but that might lead to no tractor.
Taking the bucket and backhoe off and mounting the mower weekly is not a bad chore but having a dedicated unit would be much easier.