Again, with the excellent and comprehensive metro system available in Shanghai, that system can be used to access tourist areas/sites of interest, possibly combined with short taxi rides. You would seemingly have to use the metro/taxis anyway, even if staying in a tourist area, if you plan to visit a number of tourist areas/sites.

Based on your comments above, think what I will do is to buy roundtrip Maglev tickets for the wife and me at the airport, to get to and from our hotel, and change to/from Line 7 at the Longyang Station. That will not only negate the train switch that was mentioned to be required on the far eastern part of Line 2 but, upon our arrival at PVG during Friday's rush hour, improve our chances of getting seats on the metro, since there is only one stop on Line 7 east of the Longyang Station, so the westbound Line 7 train should have a fair number of seats available when arriving at the Longyang Station. Will just have to make sure we are towards the front of the queue when boarding it.

I appreciate all your inputs. ^