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.
To conclude, the price of braces vary greatly and can start of with as little as $2700 and can go up to even $10,000. Ensure that you check for details, ask as many questions as possible and then finally decide on the right kind of affordable braces for you. You will be left smiling beautifully forever.