American Airlines SUCKS

So I travel quite a bit for business. I flew to Washington D.C. on Thursday and back on Saturday. I understand all of the security and stuff that we have to go through and for the most part, I agree with it and appreciate it. With that said, I am appalled at how a company like American Airlines could handle something like this. Unfortunately I needed to check a bag (which I hate as they make you pay for it now and never did until about a year ago). In my checked bag, I had clothes, some light related products, my laptop (which I needed to check as I did not have any room in my carry on for as I take a lot of reading material), and some promotional material. Now as I said, I travel quite a bit so I know how to pack a bag so that things do not get damaged. I wrap my breakable items in cloths, boxes, that sort of thing. All of my promotional material was shrink wrapped and placed flat between clothes and my laptop. My laptop was wrapped in a sweater, with plenty of stuff around it so there should never have been a problem. When I got my bag back my laptop was in a completely different spot in my bag (in the little zip sleeve on the side that zips) with exactly NO covering. It was chipped on the corner. My promotional material had been unwrapped and was all over my bag. When I tried to turn on my computer, there was a big spot in the middle of the screen like some of the pixels had been broken and I can no longer connect to any networks.
When I contacted American Airlines they informed me that the cannot help me. I apparently should know better than to pack expensive electronic items in there and they are not responsible for any damage whatsoever. They also told me that I should contact the airport (Flint, MI) which I did and received the same treatment. No one wants to take responsibility for their actions. I am not out $2500 for a new Mac book Pro. American Airlines will NEVER see a red cent from me again! I am going to also send a letter and fax to their corporate center in Texas expressing my distaste.