Looking at the state of Welsh rugby — players threatening to strike, empty club stadiums, empty club trophy cabinets, bad losses in the six nations, disgraced officials — I’ve often wondered: where did all the money go? What I mean is, in most countries, the sport of professional rugby is underwritten by ticket sales from six home international matches each year.  Wales is blessed with the best stadium in rugby — the Millennium Stadium in Cardiff. It’s got the best atmosphere. It’s also massive, with a 74,000 capacity (compared to 52,000 for Lansdowne Road). Wales fills it six times per…