I wouldn't buy the reissues if they didn't have the extra tracks. I already have 3-4 CD versions of the albums and 1) I hate mono so that's no incentive for me to buy, and 2) while the remastering always makes them sound better, that alone wouldn't be enough for me to purchase them.

I don't think the issue holding back the releases are the extra tracks. It is the executives making decisions at Universal.