AAA is the combined budget of marketing and development budget. Triple A suggests that it has a big marketing push and development time is longer with a ton of people working on it, which should translate into quality. but really nowadays, quality in releasing a game due to deadline and the internet to help on day 1 updates, the quality diminishes.
Hence you'll see several AAA games have season pass, day 1 DLC, etc.. this is to have an ROI for that game since a $60 would take a longer time to get that money. and pushing DLCs and season pass should help get the money back as soon as possible.
regardless if there are glitches or day 1 issues, gamers still buy the game and pre-order so it won't bomb that much and developer would still do this cycle and won't push for quality.
so going back AAA is really leaning towards marketing budget plus dev budget regardless if the quality is great or not.
