If I lost everything I wouldn't go back and replace the stuff I had from the Hasbro lines. With how much product they are putting out lately, they will either re-release it in the next few years, or they will release a newer, better version hopefully. I'm buying the Hasbro lines right now for my kids. If it were all lost, I would wait to see if they are even interested in the 3 3/4 inch line, and if so, only buy what they want. For my own personal collection, I would continue on the Master Replicas route and collect the FX sabers, but I would also add the hilts to my wish list.
I'm moving in the next few months, so I will be very interested to see how much of the stuff (hopefully none) is damaged as a result of the move. Here's to hoping I packed it all well enough!