I would say if you plan on keeping the car, spend the extra money for a QUALITY job. My neighbor had a rush $1400 job on his coupe,lasted a few years and now the top panels are fading and getting really white(the car is blue)I just rubbed it out last week and it looks a little better, but probably wont last.Maaco used a "integrated" clear, so when you rub it, color comes off too.
My paint was a "back yard" job that i paid about $3500 for, but would have ran me easy $10-12,000 from a shop.My paint alone was about $625 a gallon(2 gallons used) and another $300 in the second color,and clear.