I suspect it also may have to do with peoples expectations and what they perceive to see through the scope, only to be disappointed.
This frustration whether it is the lack of colour from objects they are seeing, or planets being just a small dot, stars being no more than pin pricks must be a real downer for some. Not to mention the struggle they find themselves trying to navigate the night sky, especially if you are not prepared to take time out to learn, or alternatively fork out additional dollars for something like an Argo.
Further to this, the lugging of components in/out and the realisation this is not a hobby for early birds, people end up with a reality check and well the rest is history..........
Its a shame when this happens and therefore its important that people come in with realistic expectations, visit clubs, go to viewing nights etc. Wait 6 months or so and see if the interest is still there, before committing some hard earn $$$.
Ok, thats my 2 shillings worth
Norm
PS and if you live in light polluted cities, be prepared to drive out to dark skies.