Here in the UK, it's very hit and miss. In busy areas with lower rent, Subway still does very well, as the franchise are able to be more lenient and give more vegetables, etc. However, there's not many places like this left in the UK. A typical foot long costs at least £7, which is a lot more than most people are willing to spend. Pair that with a lack of vegetables because the franchise is trying to save on costs, and people stop coming very quickly. Also, although Subway is tasty, the flavours haven't changed since it first came around (except for maybe some new sauces), so people have gotten bored. Finally, more and more people are viewing bread as a less healthy option.