Nice question and got me thinking.
9 years ago I was riding around on an Aprilia Tuono 1000, at the time I never considered I would ride anything else other than sports bikes and bonkers naked power bikes. The Aprilia was the last in the line of bikes I had over a 15 year period, and one of my earliest bikes was a brand new SV650S the year they came out, in fact I had the first one in Scotland.
After a break of 9 years (for no reason other than I wasn't using the Tuono much and mountain biking took over), I decided to get another bike. Enter my 2011 wee in January this year, with the same engine(ish) as my SV had in it 20 years earlier. I took this as a good sign and possibly fate.
I never thought 9 years ago that I'd be content with a comfortable touring 650 either in performance or looks, but I couldn't be happier with it. Possibly my slightly mature years were the main influence in this decision.
So onto the question of which bike in 5 years...... probably a ZX-10 or something bonkers