Bunch of people said the very same things about the E46's...... They are now pretty much very dated and the only one that really counts is the CSL.
Only few special edition E9x might be a future collectibles and couple of the individual ones may be. That is if people manage to leave them stock and don't mess with them too much.
Last year production usually is more desirable for sure.....
Current: 2016 F10 535i xDrive AW w/ Black Dakota, ZMM, ZCW, ZDA, ZDB, ZPP, 688 & Black Grills.
Retired: 2011 E92 M3 -AW
....ED April 29th, 2010
Retired: 2007 E92 335i -Space Gray.....ED Oct 19th, 2006