There are a lot of things an addicted gamer would prefer for his game console. Regardless if this is a PlayStation, Nintendo, Gamebox or personal computer games, add-ons in the form of steering wheel controllers, dance pads and higher capacity memory cards will always be available for expansion.
Some people would be content by merely having the basic gaming unit and satisfying themselves with the available options a game would have. But sooner or later, depending on the game genre that they are looking at, upgrades and improvements to their current setup will surely ensue.
There is no question that a gaming experience would increase the ante of requirements to play the game at a higher level. Such an occurrence will only be normal because this is what game developers aim to achieve. Higher requirements in the form of required controllers and hardware requirements will only be normal. The advanced a game becomes, the higher the need for advanced requirements as well.