Never been in TPA. I disagree with your assertion that pax won't care what airport they use if the fare is good. I will always use AMS or FRA as my hub in Europe to avoid LHR, regardless of price. Likewise I'll always try and use ATL in the states. World's busiest airport and it's just so easy. Some LONG walks but it all makes sense. Regular travellers, particularly business and first, are very discerning with airports and carriers.