I have a project I'm working on in which i need 100-150 Google Cardboard headsets. The problem is there really isn't anywhere to buy them in bulk other than China. If you look on ebay you can find them for around $2-3 shipped from China. If you go to AliExpress they are between $1.50 and $2.50.

Has anyone experienced the Chinese headsets? Are the $1.50 versions going to hold up for, let's say use by 3 separate people for 30 minutes at a time?