One thing is for sure a Turing-Complete Nxt would have much more marketing WOW than 1000 TPS Nxt.
I think everyone can clearly see that fact with Ethereum.
You cannot be serious with this statement. What percentage of people have even heard the phrase "Turing-Complete"? What percentage of people hate standing around waiting for that little machine to spit out their Visa slip?
People don;t really care it takes one minute but they care more that their purchasing power doesn't depreciate during the transaction.
If you want to pull off a VISA type setup your gonna have to fix the price of NXT....the US Dollar doesn't fluctuate on moment by moment basis....but NXT does.
This problem applies to both merchants & consumers....it's like buying goods in Euro and selling them in USD....after a certain amount of time your profits might be wiped out by rate fluctuations.
EDIT: Turing-Complete is to take the spot light off Ethereum...we are in the market for crypto-investments, programmers and early adopters....Turing-complete is a competitive threat against Nxt.