Could be the end of an era in some ways....Balsa could get prohibitively expensive for model building.
I have been amazed at what you can build with PVC in various thicknesses and endless widths..the glues are amazingly strong...it is light and durable inexpensive , made in america and you can sand it to shape ( well kinda) OK curse me now..but if its in the interior framewok and not visible who cares? try it out, you will be amazed at its applications...
I am not looking to giving up my balsa addiction either...but we better start considering alternatives...look how far carbon fiber has come !