trust me take the $100. you'll never use the 100 matmid points. I thought I'd never use the $100 voucher (can only be used when buying directly through elal and in your name), but I had some time at the airport and started asking what I can redeem it for - they didn't even know what it was. I got them to let me use it for a free second checked bag. probably the best use I could have gotten. you can use it for a "plus seat" too though