anjohl: So, in short, it's very unlikely that EA will dig into it's deep back catalogue at all, even though it's obviously enormously profitable to do so.
Miaghstir: Apparently they have come to the conclusion that it's more profitable to sell a few million copies of $50 games than a few thousand $10 ones, and they're afraid that their older games will decrease the sales of their newer titles.
Remember that out of those $50 for a new game, not everything is profit. There are costs of development, production, distribution and marketing to cover. Their old titles, on the other hand, would be essentially "free" to sell. The digital distributor takes a cut of course, but other than that, it's money straight into the bank.
Also, it is likely that the group of people wanting to buy their new titles, and the group wanting to buy their old titles don't overlap 100%.
And yes, sales of old games may take away some sales of new games, but remember that most sales of new games are taken away by sales of other new games, likely from other publishers. To put it simply, the more products you have on the market, the more likely it is that a customer will choose one of
your products rather than one of your competitors' products.