Rear Finish Mower 3pt mower question. John Deere 272

[Jorasz]

I am looking into possibly purchasing a John deere 272 3pt finishing mower and I'm not sure if I like the idea of no wheels in the front. I have always seen the finishing mowers with 4 tires on them but not just the 2 in the back. Is there a reason (cutting or mowing) that they have mostly all gone to the 4? Should I look for the 4 wheeled type?
What are your opinions?