No argument with your response.
My point is especially for a new person looking to get into the hobby. First, I think a relationship should be established with someone local who can provide that initial welcoming to the local club, local resources like training, etc. A newby doesn't know what trainer to buy so they will ask questions here but a local club may already have one for them to fly before making that initial investment. Sure they are a lot of sellers with excellent ratings and I would agree they should be considered as a viable resource. However, if they consult fellow club members they may also be able to provide assistance with setting it up, what additional hardware may be needed, what channels are the best to consider (if considering these types of radios), fixing something that may not be right, etc. I know, many sellers welcome returns and will jump through hoops to keep their customers happy. My point is that if I attend a meeting and ask about a trainer, someone there or at the field may have one for sale. I can ask them questions right then and get responses right now. When I was new I had one guy invite me to his home and gave me some parts for a demo plane I was building. After talking further he decided to give me more parts.
Now that I am more experienced, I don't hesitate to look here for what I am looking for, or just to browse what's available. I have a birthday coming up hehehe...