I must say to 1500 raw images for a wedding are very very impressive, but is possible, and with large capacity CF so affordable nowadays is not a big issue, more over a portable memory storage device is very commonly used.
I believe that xxxger like to point out is: if photographer A practice shoot 1500 raw pick 300, and Photographer B shoot 700 jpg and pick 300, both charge the same price and produce same quality final output. Which method is making more sense to you (as a photographer)?
Ok, if you may say the photographer A produce higher quality final output, so should charge higher. Sure, no problems, no issues, it because more work involved, time consuming for postproductions, but customers like it, want it, so make customers pay lor.
But what if customer cant tell the different the works of Photographer A between Photographer B, except the price?
To be frank, you(photographers) have to see things from customers perspective, as long if the photograph captured what the want for their wedding day, the photos look great to them, they dont really care who shoot it, how you shoot it and the most important, the price must within their expectation with this kind of works.
Most of the time is we photographers spend our energy nit pick on certain issues, which most customers dont ready care, bother, or want. And you ask them to pay money for this? You must be joking.