I would still like to own a 1440cc 2012+ , and could of at the the time I bought my 2012 Busa . The really only negative things that stuck out to me about the 14 , is the physical difficulty of working on the bike itself , and the other reasons that kept me on Suzuki is that Busa is better in this regard , and handles better than the 2012+ 14 . The 1440cc Kawasaki motor makes more power , about what you would expect a factory update 1440cc Busa motor to make .
The pre-1440cc zx14 was a nice powerful bike , but did not eclipse the Gen 2 Busa in power , as the 2012+ has . In Aussie bike market , you can get the pre-2012 zx14 for a good price , whereas the later 1440cc is holding its value and price .