Your stereotyping hardcore gamers. Many hardcore gamers would never bootleg a game or play roms so that's a weak point to make. On top of that it's pretty hard to bootleg games on the newer systems like the 360 and PS3,
Second, gamers are not saying they are against DLC in general. If the DLC is in addition to the purchased game and only adds to an already full experience then there is nothing wrong with DLC. I don't even think many gamers would argue with online content subscription codes because many gamers understand that servers have to be maintained and used sells don't contribute to the long term use of the product. It's when DLC is used to "finish" an incomplete game that is the problem.
Finally, the only reason why gamers wait for the bargain bin is because the remainder of the gaming audience doesn't see a higher retail value in the product. There are plenty of well made titles that are purchased on day one. Months down the road when it hits the bargain bin is it better that I purchase the game at $20 or not purchase the game at all if it stays at $60? If a game goes straight to the bargain bin then there is something wrong with the game, game marketing, or game release date. That has everything to do with the developer and nothing to do with the consumer.
Don't get me wrong, gaming companies can do anything they want with their property. However, it's going to get to a point where gamers won't find value in the ever increasing prices for gaming entertainment. If DLC keeps increasing prices then the gamer will either stick with (or discover) older, non DLC based systems ( that's where I'm heading myself) or leave the industry behind all together and find another hobby. Hey, I would love people to discover the systems from the PS2 and before and find that they can be just as much fun as the PS3 and the Xbox 360.