I can't speak for game companies, only as a consumer. I used to spend $75 to $100 on RPG products a month. Now I am lucky if I spend that over 3 to four months. Why?
There is simply less to buy within my tastes. I am not a WOTC purchaser - I purchase all d20 and OGL.
Everytime I walk in the gamestore I find less and less to purchase. Now it is mostly a big book every couple of months (Black Company, WoW, Spycraft, Game of Thrones, etc) There are very few "smaller" titles to purchase from. Many of the game companies that used to release a book every month or three have been diversifying into other gaming systems (not interested al all) so then I am not buying from them.
It is kind of depressing actually. I remember going into the game store and having to "choose" from a more neat products than I could afford. Now, I wander into the games store once a month and see if there is anything there for me.
I just figured that I purchased more than most, and when the companies suffered from others not purchasing, now I am suffering because the companies I love can't afford to produce the product I love any more.
I take it back. It is not kind of depressing - it is depressing.