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.
In general, the average cost of braces can be anywhere from $3,000 to $7,000, depending on the severity of the problem, if braces are placed on one or both arches and the type of braces you choose. The following factors contribute to the cost of braces; knowing what you're paying for can help you make a decision.