There ARE no other "other bikes" that remotely hold the allure to extract this sum of cash from my bank account.
I've been taken by the R3 since it was first introduced in the US around 2000. Its engine as visual focal point, and it's brick through a plate glass window approach to forward thrust and subsequent cruising strengths appeal to me in ways akin to my K1200R's Hossack(Duo-lever) front suspension and other historical BMW engineering traits make it appealing to me.
"The cheapest thing on a BMW motorcycle is the owner" (though you wouldn't know it by some of the cacafuegos on a popular BMW forum). I've owned six of em' over 40 years. Their historic longevity naturally lends to 'long term' cost factoring, and the "cheapness" carries over(at least with me) when other brands or moto genres are considered
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