All three of your questions can be answered by either using my own judgement, or reaching out to people more familiar with what I'm trying to accomplish with the product/purchase.
I'd trust a mechanic's opinion on what tools to buy much more than a tool company marketing department. I'd expect this type of thinking (being sceptical of "marketing") is pretty much common sense these days.
Can you really not imagine any way to learn about things existing without some marketing department telling you so, or do you just want me to say that not all marketing is bad or unnecessary, which I have no problem doing.
Well, the only entity who knows about a product's existence is the product creator. Without them marketing it (organic or otherwise) nobody else would ever know.
I'd trust a mechanic's opinion on what tools to buy much more than a tool company marketing department. I'd expect this type of thinking (being sceptical of "marketing") is pretty much common sense these days.