Does rogaine become ineffective after a certain amount of years? Please can somebody give em a detailed analysis of what a long term rogaine user would expect. Also are there any users out there who have been using rogaine for a long time? I have so many questions; like if you were to use rogaine on your hairline for five years and then started to develop a bald spot.. would the rogaine work there as well ... or because your body got used to it .. it would no longer work even in a new area?