Agreed. For my son on the surface a Lowes series would have done fine so would a 300 series. We went with the 570 just because over a few years it just doesn't cost much more. Turns out growing up here he is used to being able to use something and not worry about it and using what is available to get the job done. I think it does more pulling the lawn cart behind it than it does mowing.Call me simpleminded but if the rear rims/tires do not have lug nuts/bolts leave it where it sits.
The heavier duty the transmission, the happier in the long term you will be...........Pulling items or ground engaging items add a lot of stress on the transmissions over time. Can you change the fluid and filter in a transmission as part of scheduled service? If you can't service the item, plan on replacing it sooner..........Actually already have a 2520 but wan't something smaller to pull cart, roller and lawn sweeper.