VAT was not introduced s a luxury tax, it simply replaced purchase tax which was widely different on many goods. Making a tax " uniform " makes a lot easier to handle by HM tax collectors.
The UK economy APPEARED on the surface to be doing very nicely for the past decade but the reality is far too many of the us were living in credit and taking on more credit than we could afford to repay.
People have been foolishly buying homes and goods on credit which was in reality beyond their means to repay. Sure, the building societies and banks were making it easy to get the loans but nobody was holding a gun at peoples head insising they get deeply into debt.
Greed and vanity is the major cause of the recession compounded by the naivety of the British public to think it's OK to buy more and more imported goods at the cost of British industry.
I'm referring to high volume products here, eg, food, clothing, etc, which are being sourced from abroad to a greater extent every day.
VAT is I agree an obscenity but so is POOR MANAGEMENT and WASTE which is blatant in the way tax income is spent by both LOCAL and NATIONAL GOVERNMENT.