A lot of people suggested that... and if you check the other post made by Gramae Borland seperate from this thread made 2 days ago on the games page, he even said he's adding one.
He's not just adding a save feature, he's adding a huge update to the game consisting of a very very large amount of the suggestions made to this thread. That save feature is going to be bundled in with that group of updates as well.
if thats the case, then waiting even a few months would be worth it instead of comming back weekly and replaying the entire game over and over with just a few extras each time.
