I think the 802a package is really going to help resale, is it absolutely necessary absolutely definitely not, but when I was looking for a vette I immediately went to the vettes that had the 3ZR package so I imagine some people will do the same thing. As for the heated steering wheel, its nice, I have it on my volvo, kinda overrated but for a little over $100 bucks kinda a no brainer for me especially if your already getting the 802a package.
Side note: I do think the 802a package should have been an "all inclusive package" especially for the price but I guess ford priced things the way they did so either pay for it or don't, not a lot of option there.