Landlord won't return deposit?

I rent a home and put down a $600 deposit. I had a 9 month lease, I then signed a new month to month lease after the 9 month had expired (it was a new lease not just going month to month). I moved out and it took the landlord a few weeks to do a walk through. He said everything was great (I had spent $250 have the carpets and house cleaned professionally). He has nothing but great things to say about us. I asked for the deposit and he said the depoait was money to hold the house (we gave the deposit 11 days before we moved in, since we were selling our home and moving long distance), the deposit was not for secuirty reasons just to hold the place.
I was polite and said I believed deposits were for making sure the house was damage free and rent was paid up, he agreed the home was fine and the rent was all paid.
I pointed out the second lease says the deposit we paid earlier would transfer to the new lease.
he said he would get back to us, he was headed on vacation.
It has been a week with no communication, how should Iproceeed. Is it worth fighting or going to court?
I bought a home again so I won;t be renting again.
I took a video and pictures of the home before I moved in, and I took an extensive video and over 100 pictures when I moved out. Since it took him so long for the walk through I had members of the home owners association walk through before I moved.
The orginal lease says a $600 deposit is required and then states the day it was paid. The next line states there would be a $600 pet deposit and then next to that we signed stating we had no pets and that it was N/A.
The second lease just states that the deposit carries over to the new lease and states the date we paid the deposit. Why would it carry over if it was a holding deposit??
The lease was just one of those forms you print off the internet. The landlord is his first time renting (it was his vacation/golf house).