My unit is a 99 and a new roof was just put on 3 years ago. This was done only because some goof put a petroleum base product on it thinking that it as the right stuff to reseal the roof with.
Any person should know that petroleum and rubber are not compatable together. The old roof did last for 14 year and from what I understand no maintenance was done to it.
An EPDM roof is easier to look after and less costly to repair, especially with the number of proven product on the market today.
I would not be afraid to suggest that a unit with a rubber roof would be a good purchase if the floorplan is what you want.