Looks like this thread took a turn toward the financial side rather than the opinion of the different bikes and technical side. I can only add that I love my 2013 F6B but I would love to have cruise and gps. Based on current prices for used F6Bs not sure I would trade just for the upgrades alone. If handling is one of your main priorities it may be worth it to you to trade. Bikes are more of a personal preference and everyone has a different preference for ride quality, performance, accessories, handling, ect. You know your financial position and priorities so make the decision that you feel best after you do the research on the bike you want.