Why are you shopping for a new bike?
If you are afraid you might be missing out on something you'll have to try out the newer features for yourself.
If you don't want to mess with the new stuff, look at a cheaper model or maybe your current bike is still adequate.
If you're trying to impress other people, save yourself the trouble. At best it's only going to work for one year because there will always be another new, shiny object next year.
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My greatest fear is all of my kids standing around my coffin and talking about "how sensible" dad was.