Just to play the Devil's advocate
, what about your ability to take ukemi? As you get older, will you be able to take that koshinage from the 6'6" 230lbs Nage? What about you're ability to take the ukemi from a kicking attack? Or what about your ability to provide a constant "realistic" attack as Uke for you partner?
These are some things to consider especially if you assign any importance or correlation between your ukemi ability and your ability to execute a technique.