Rock Band 3 introduces pro tracks and pro instruments, so you would expect the DLC that incorporates even more iterations of every song in the multiple modes to be priced more. In this case you are right.
Paul DeGooyer, MTV’s Senior Vice President of Electronic Games & Music, stated that even though the pro-guitar DLC would cost more, anyone else looking for standard version or pro-drums/pro-keyboard wouldn’t have to pay more than usual.
This is good news because for everyone who doesn’t want to shell out the extra charge for the pro guitar, you can still enjoy the game without any change. However, if you want to play Pro Guitar there is a price increase for the DLC.
“Going forward, all DLC released for Rock Band 3 will be fully Rock Band 3-compatible, which means it’ll come with Pro Mode for keyboard and drums, harmony mode, etc,” said the Senior VP. “The only thing that’s more difficult for us in terms of authoring time is the guitar stuff, so we’ve decided to sell Pro Mode for guitar separately. If you’re not interested in Pro Mode for guitar, you can still get the DLC that should conform to our current DLC pricing, and you get Pro Mode for all your other instruments.”
DeGooyer stated that those interested in the Pro Guitar tracks would only have to pay “a buck extra”, which increases the normal $1.99 price t0 $2.99.
Don’t get your hopes up though for playing a certain song on pro mode, he also stated that not all tracks will support the pro-guitar mode, following by saying that “(Many bands’) guitar parts wouldn’t rise to the level that they would need to have pro mode authoring associated with them.”
DeGooyer ended by saying “We think it’s a really fair price, The alternative would be of course to include it [in the regular download] and up the price for everybody, which I don’t think is really fair.”