The likes of Coventry, Walsall etc pick up excellent music concerts as well as being ideally placed for business conferences and the like. Sixfields is in a dead area for the '365 days a year business'.
Have you been around by Coventry and Walsall's grounds on non match days ? I have and apart from Tesco's at Cov its no different to Sixfields and Walsall has a McDonalds and a budget hotel to go with a load of warehouses.