$20,000 USD is a lot of money for a fat, slow motorcycle, even if it is very pretty.
The price point is aimed at the lawyers, dentists and real estate agents (Sydney) out there, although they tend to go for the Harleys or the Italians, I reckon.
So they are saying AU$30K or US$20K for one of these. Let's see what we can get new in Australia (seeing the article is Australian)
Kawasaki Z900 (AU$$18,281 or US$12 248)
Also a retro cafe racer. (maybe not as "special" as the bike in the article, but a huge savings)
https://kawasaki.com.au/shop/motorcycles/retro-sport/z900rs-cafe/
MT-10 (AU$21,149.00 or US$14 169 ) (MT-10 SP AU$ 24,349.00 or US$16 313)
Even on the special edition, you are saving thousands. It's not retro, but I know which one I'll choose and it won't be the Honda. It's not a retro, but for thousands less, I get one of the most awesome 1L Japanese bikes on the market today.
https://www.yamaha-motor.com.au/products/motorcycle/road/maximum-torque/mt-10
XSR900 (AU$14 850 or US$9950)
Retro at half the price, most probably double the technology.
https://www.yamaha-motor.com.au/products/motorcycle/road/sport-heritage/xsr900
GSX-S1000 (AU$$15,490 or US$10 387)
Not a retro, but must be the best bang for buck new, modern 1L naked outh there, for half the money than the Honda.
https://www.suzukimotorcycles.com.au/range/road/sport-sport-touring/gsx-s1000/features
Honda CB1000R (AU$18443 or US$12 356)
If I had to choose between the two Honda's, it would be this one every-time. I even get a hint of retro thrown in, at thousands less.
https://motorcycles.honda.com.au/Naked/CB1000R#product-details-list
BMW S1000R (AU$ 22 250 or US$14 907)
I thought I'd throw in one non-Japanese bike for kicks. Even the German's come in for less. This would be my pick of the bunch. The MT-10 would be a close runner up.
https://www.bmw-motorrad.com.au/en/models/modeloverview.html#/filter-roadster