You don't have to format the plus that is, it does it automatically in the backround. A the dash to plus compatability ratio is up for grabs, there really is no say in it. Also, what do you mean minus is closer to the stanard... what standard? the plus is a better standard, but which are you referring to?
I haven't seen a notebook with plus yet myself, I would like to though. As long as the discs read in the players I will be using them in, it shouldn't matter much.
The price does vary yes and dash is sometimes lower, but be careful which speed your referring to and what recording speed you have. Many 1x are cheaper than the 2.4x or 4x of the DVDplusRW. It's hard to find out what speeds each have as they sometimes do not say when you purchase them
. With reason that it's slower