That sounds like a wonderful sleeping arrangement. Unfortunately, co-sleeping was not peaceful for my family. (I posted my sleep story under another thread.) My dd did not nurse well in the laying position and it was difficult for us to sit up and get situated. I found myself taking her to our recliner to nurse and then going back to bed only for her to wake up when I tried to get us in a safe position. She also did not always ease into sleep after nursing and would need to be rocked. In addition, she aroused easily. We tried several arrangements and finally surrended to a crib. Now that I look back, I probably should have tried again once she became a better sleeper and when we were able to nurse lying down. However, we do have an arrangement where her night wakings are attended to and everyone gets enough sleep.
Although your co-sleeping experiences sound wonderful and are the ideal for AP. From my experience, I strongly believe that you can still AP when using a crib. Also, I did end up sleeping with her some when she needed to be held for various reasons (often in our recliner!). I hope to co-sleep with my next baby.
Thanks for sharing!