I own a 95 sportster 1200 evo motor so i suppose i fall into that category. For me it comes down to, on the Harley side, vintage is VERY expensive due to rarity, scarcity, and the current owners reluctance to let go of a good bike. if you want the same vintage this site caters to its roughly a 7000 buy in and they are not nearly as reliable as a similar vintage cb750, kaw , yammie, etc. The aftermarket is there but again its HD ( hundred dollar).
On the honda side i have owned an 81 cb 650 (great bike after the cv carbs were done right the 8th time) an xr100r maybe 1990 or so and currently a 73 cb350f basket case. I love my hondas and wouldnt hesitate to jump on a REASONABLY priced vintage sohc honda. Demand has absolutely put them out of my grasp. Wonderful bikes as they are i am tired of pouring through craigslist ads of halfway finished custom bikes.
My harley is what i see as the modern CB package. Its reliable, gets 35mpg with a worked motor, rides and handles excellent, and parts are readily available. My bike has drag pipes, is stereotypically loud and i wouldn't trade it for anything. I've a friend with an 98 evo motor Ultra Classic with 160,000 miles with no internal issues. Original engine, people who will not give harley a chance these days have not given them a chance. The AMF days are long gone nightmares, which is a terrible thing to say seeing as they bailed out harley in their time of need.
TL;DR Harley these days is like honda then, and vise versa, looking at you sandcast dudes