I prefer not to lose neither the ability to lose old memories or not have the ability to gain new ones. This is part of life, but If I had choose, I guess I would have to not make new ones. Old memories just seem more comfortable for me. Why would you not want to go home again, unless you had a very bad experience in life in general, like an abusive relationship with your parents.
To be honest, I have enjoyed all the memories I have made good and bad. the bad ones are lessons learned. No one has abused me (at least for what I am not aware of).