Thees89 got a lot of these, but I'm going to chime in on number 4.
Basically, the number one question we would get asked is "When is x coming out?" I mean, it was like a hundred to one the most common question we'd hear from both retailers and gamers. People always wanted to know what was coming out next. And that's reasonable!
Games Workshop's policy is not to release information farther than one month out, for a valid business reason: the company doesn't want you saving your money until next month, they want you to spend it NOW.
AND next month.
It is just this sort of thinking that loses business. I have seen it, and I am fairly certain that other wargamers have as well. I saw an unscrupulous
GW employee sell a customer an
IG Guard codex a few months before the new codex was due out. Shortly after the new dex came out the guy dropped the game. Another win for
GW.
If
GW is planning a new product that supersedes an older one, then they could do what most other major companies do and discount the soon to be obsolete item. Selling customers the old item will just make them mad.
Also, building an army is usually something that takes time and planning. To buy suboptimal units (in terms of sculpt or gameplay) simply because they are available is detrimental to most peoples' enjoyment of the game. If a particular unit is coming out then it is
GWs best interest to inform its customers of that so that far ahead of time so that they can get items that best fit their army.
If
GW is tired of not being able to sell certain units then they should make more balanced games and codicies.