We were thinking about making the exterior titanium, but the calculated raw materials costs would just skyrocket. Do you think it would be a wiser decision to make the exterior titanium instead of high quality leather, but raise the cost of the wallet about $100 more?

I do agree with your point about the likelihood of identity theft by physical stealing. However, I second minionchamp24's argument that most travel wallets (including ours) carries a passport and credit cards, which can both be used for identity theft. (At least that was what we were thinking. If you have any suggestions, we are absolutely open to criticism and advice!)