so you can't be "collecting" yours then as they aren't zero miles bikes, and it's merely a coincidence that you don't ride them..
Rare models are a different thing as you know, low mileage examples are (so far anyway) good investments - my 3 zero mile bikes are all cult bikes of a particular era. So I don't ride them? Yes most are investments but are treated as works of art (not locked away out of sight) - I have 3 bikes on the road every year - sadly I can't afford the time / money and effort to run all of them (zero mile bikes aside). You have more than me anyhoo so I guess you are similar in usage
none of mine were bought with collecting in mind, lack of use is for another reason not fit for public Forum. I still managed a few K last year despite. Bottom line is, above 900SS is without doubt a desirable "collectors" bike regardless of mileage, no point in me commenting on it's price.