Hipennine - I have been an analyst in the aviation business for 26 years and can assure you no major supermarket chain uses airfreight to transport fashion items or electrical goods into the UK an any sizeable quantities. Its simply too expensive to do so when the major supermarkets are trying to drive costs down.
The shipping lines are only reducing frequency and on a small scale simply because the container ships used are getting bigger.
The DTV thread appears to have become totally taken over by fantasy posters coming up with ridiculous and absurd solutions to DTVs problems.
The simple fact is we have too many regional airports in the UK. DTV will not be the last to go in the next few years
Whatever the future has for DTV I would be very surprised if any future owner kept it operating as a commercial airport. The locals don't support it and the airlines don't want to use it without both these key elements you can not succeed.