Yeah I have switched to 1.8 as well. Will get it quicker than the 1.5T just because I cannot keep a check on the kind of fuel which the car is using as that is going to be the main car used now as the other car's are older and I want to give them a break.
As for the leather package, go for it. About the entertainment package, I don't think so. Did you see their crappy rear entertainment package. I mean its a crappy screen attached to the centre console, which is just too pathetic. I am not going for it. I have gone for the navigation package but that's about it. I did have issues with the 9th Gen Navigation system but then the Pakistani company (I cant remember the name) replaced it and it worked ok since then.
Btw, I haven't seen any mention of the amount of cameras this car has. The 9th had 3 cameras, front, rear and the cabin camera. Lets see what they give with the 10th.