So Tesco spend £1m taking 100k customers from Sainsburys, and Sainsburys spend £1m taking 100k customers from Tesco. No overall change, other than Tesco and Sai

So Tesco spend £1m taking 100k customers from Sainsburys, and Sainsburys spend £1m taking 100k customers from Tesco. No overall change, other than Tesco and Sainsburys customers end up paying £10 extra on their shopping, what a waste of everyone's time and money.