It's relevant because all S models have a single row IMS bearing (minus the 2000 S models, which have a 50/50 chance of having either).
I'm proud to have a BASE '99 with DUAL ROW IMSB!
That, and a base is nothing to be ashamed of. It's still a lot of car and the difference in performance between the two isn't as great as some would like to believe (the 0-60 time difference from the very first 986 2.5 base to the last 986S 3.2 is all of 1 second).