Quantity or Quality?

Games are being released at an increasing rate but sadly the quality of these games has suffered greatly under this, problems ranging from the simple little shadow bug to the more extensive crash bug occur more often. These bugs are one of the problems games have recently suffered under, these bugs decrease the entertainment of games that have them because one it destroyes the atmosphere and second it sometimes makes it harder to succeed. The next area of problems is the premature release of a game this means nothing else than that after a game is released, while it should have remained in in development for at least another year. Games like that suffere under the lack of atmosphere and storyline even though they did have the initial potential.
Now there are still games that are good and that offer all the entertainment and atmosphere needed to make a good game but the game market is being flooded by games that are insufficently tested and/or developed. Why is it that history has to repeat itself?