haha well i suppose i havn't seen the current model years but mine has it, maybe they quit doing it?
Also I was reading on some forum and people were talking about the dimpled bases on arbors. anyway they said that there is a board factory that makes a few different brands of boards and they all have the same base. I could be wrong though on both accounts.
Which model do you have? In your experience how does it function compared to a standard base? Do you have to do anything special when waxing it?