I've read in a few places this lens may be phased out as it has been around since 1999 and is primitive in many ways. The online users who implied this belief stated the reasons were its lack of sales and its complexity. I'm on the verge of acquiring this along with the MT 24EX macro flash but was curious if anyone out there has heard the same rumor and if there will be a replacement? it's a nice chunk of change to plunk out and then have it replaced by a MK II version shortly thereafter or possibly no MP-E 65 at all. Can anyone validate if any of this is true or if the demise of this lens is on the horizon ? -Thanks Rev