Some of us would like a perfect transformation '60 series VF-1 because 1/60 seems to be Yamato's declared scale for their newer releases. Furthermore, there are those of us who want to display the VF-1 with Yamato's latest releases, such as the '19 and the upcoming '51, however in proper scale. Personally, I think posing a '48 VF-1 besides the '60 Zero and the '100 VB-6 with a Joke Machine up front and a 'Taka SDF-1 in back and a Hikaru man-doll to the right is....silly.
As for the looks of the different scales, I and others like the looks of the '60 VF-1 over the '48 that looks wierd and disproportionate in different modes. All of this of course, is just a matter of personal taste-to each their own, and it really isn't a big deal either way, at least not to me...