If you can afford one by all means. Its your choice.
But this is my opinion if you drive daily in the city with all the traffic and stop and go....Why bother to have a Turbo, you don't need all that power. But if the TURBO makes you feel good knowing you have the advantage when needed then go ahead. With the stock set up you can already smoke "MOST" of the cars out there. my 2 cents.
I want a TURBO but the problem I can't afford it.