I know what you're saying and don't totally disagree. There are a few considerations:
1. One person's 'basic' is another's 'interemediate' or even perhaps 'advanced'. The classification is quite subjective and liable to wide variance and probable disagreement,
2. 'Teasers' are a great way of getting sales - show one trick, without the working, that attracts and excites and you're on the way to getting a sale,
3. If you have get the dogs out so you can cross the frozen pack ice, negotiate crevasse and avoid avalanches then I can understandthe views more. Most of those I've met who are like the young person I encountered at the beginning of this thread who live within an hour and a half maximum of a multiple number of shops and many, many, many (Damn - it's the Police Academy bug again!) clubs where they could learn from 'people'. Odd concept I know, after all magic ought to be done in darkened rooms but pasty-faced, sad individuals (like me

) and shown to no one,
4. There is a place for video clips and perhaps some disclosure sites are helpful. I really really not sure on this because for many, knowledge of working is the goal not practice and polished performance. Show as many tricks as possible, sell videos of the working -that's called business.
Disclosure for the hell of it, or because we're serving magic by attracting others to it, for once they know the moves they too will become magicians is a flawed concept - it doesn't aid magic - it effectively kills it.
Sorry so long,
Vic