Pet site $3-$4 earnings a day 250-300 unique

I am considering to sale my pet site http://www.petsdb.info averaging 250 - 300 unique a day and most of the traffic are from search engine. The content of the site is not unique, but the script is created by me.

Here is the traffic info info link http://extremetracking.com/open;unique?login=petsdb
http://extremetracking.com/open;ref1?login=petsdb

1380 pages index by google and and 52,011 back links

The traffic is increasing daily since the site is already out from google sandbox

BIN $1300