I know what you mean, about interest, any Jap bike I have had people seem to ignore, but the Harley gets looks and people asking about it of all ages, as with any Triumphs I have owned ( more from old people ).
Guzzis have never really interested me, got offered one ages ago for a swap, but I just didnt really want it. I should test ride one and a Ducati one day to see what I really think.