It is your garden. You try it the way you want and it will evolve to suit your needs and your pocketbook. We started out with a very small patch (about ten by four feet) and have grown it into an area many times that. we found out this last season that we want to expand the potatoes and tomatoes and use those areas to expant the carrots and onions. The strawberry patch is four by eight feet by itself. Next year we will be adding to the garden with raised beds so we can plant sooner for what seems to be an ever expanding garden.
At our age will will probably start decreasing our garden in a few years just because we can't handle the work load. Be that as it may I have informed my wife that the cantaloupe stays! She told me that she wants to add watermelon. So it isn't shrinking next year at all.
I keep telling my wife that I am not a farmer - I'm a "gentleman rancher". I don't think she gets it though because I am still working in the garden with her. I guess this is what was meant whe we took that oath for better or WORSE. I guess she's worth it though. She gives a lot more than she gets - but she is still happy to be my wife.