Mine is suffering from the same thing. Hood has chips from rocks from being behind plow trucks last winter. I might just get the whole hood repainted when I replace my dented trunk and get the new one repainted.
In your case I'd find out how much would be to get the whole car repainted. Check different body/paint shops if your have that option for different prices for a whole paint job vs spot repair. Dealers will always charge you an arm and leg so stay away from that, unless you can get a deal.