I was just thinking about it, and honestly, how many online retailers are there? Wow. Uh, usually they allow you to send a question about an item they have for sale. If they provide the information you want, stick with them! Sometimes asking a few questions makes a big difference.
If they don't provide the answers you need, maybe looking at another retailer that can help you would be better. A lot of electronics retailers provide a lot of electronic equipment. Not just keyboards.
They do want to sell them, and it is places like here that can provide more details with reviews and on hands experience than any retailer could give.
Maybe asking around here about a certain keyboard you are interested in would give you more result than asking all online retailers to provide what is here already.
We all enjoy using our keyboards. Whether it is a new one or a vintage one. I would think the manufacturer of the new keyboard would provide the most information about their own products, and it is up to the consumer to decide whether or not they want it.
That's what reviews are all about. (I would think.)
One point of view isn't necessarily the same as another. And a keyboard is more of a personal preference. No matter what anybody says, it is ultimately what you prefer.
That's it.