Add in the general notion that Memphis has been used and misled by other leagues in the past, and you have a public that is very skeptical about any pro franchise coming to Memphis. So far, very little, if any, information about the NBA moving to Memphis has done anything to dissuade that skepticism. Viewed by many as ridiculous numbers, the study did more harm than good. It would have been much better to come up with a reasonable set of numbers that everyone could understand and believe instead of benefits that have little or no meaning to the average citizen. Construction dollars would certainly be re-spent in the community.
Some number times some part of the construction costs.
The problem with any benefit from construction is that the arena is to be built solely with tax dollars. The majority of those tax dollars would have been spent in the area anyway. Estimating the number of times Memphis is mentioned in print, radio, and TV, then calculating the advertising rates for those mentions, and multiplying by 2.5 because being mentioned in the news is 2.5 times as valuable as being mentioned in an advertisement is a stretch. Nobody is going to decide to move to Memphis just because we have a NBA team here. Certainly, there will be new businesses opened near the new arena, but some of those would have been built elsewhere in the city whether or not the new arena is built.