I agree that stainless steel is bad for coffee (glass-vacuum carafes are cheap and effective), but it usually takes awhile, an hour or more, before I notice a significant change in flavor from exposure to steel. On the rare occasion that I cannot avoid using a travel mug, I use this thermos tumbler.
Braces cost is around $4000-$6000. Braces cost $3,000-$10,000 depending on location and also on what kind of dentist does them, general dentist (cheaper) or orthodontist (more expensive). In European countries Braces usually cost about $5,000 nowadays.
Note: The following prices are ranges and can vary based on insurance and dental care provider. Metal wired braces. Still the most popular type of braces, metal wired braces are made from stainless steel and feature metal brackets that shift teeth into place over time. Average cost: $3,000 - $7,000.