The man is 80... Ticket prices for this tour for 1 single Paul are more than Rolling Stones(3 guys). It appears its the final run in each territory he is playing, and he is trying to maximixe the $$$ on his way out.
Only the smaller venues and LA /BOS are sold out or close to sold. Most other vensues including NJ are wide open. Ticket deals will be had on the secondary market, just be patient, adn you will get the seat you what.
However, if you are on the ledge about seeing him, do it now. This is most likely the last US tour sans an occasional spot show here and there. Its over!