I am looking at the X320 vs the X500 or X530 series. My questions are really what benefit would I get of one over the others. I plan on getting the 54" deck and don't really know whether the power difference justifies the larger price of the X5. I have 3.5 acres, but this will mow only the 3/4 acre around the house. I have an area the I will continue to mow with my 62D on my JD2320 that is field grass. The tractor is just a little heavy for my main yard around the house. I borrowed my neighbors X530 and it was the best cut I've had on the yard yet. Is the power steering that important to these small lawn tractors? I don't ever plan on putting any attachments on this, so I don't need to consider moving up to the X7. Any help is appreciated.