no you are mistaken because of a lot of FUD in the media. there were no several countries ever! what happened was that a tiny place in New York State started planning for some restrictions on usage of electricity and that news was exaggerated in less than a day into a big FUD.

you don't have to worry about miners they are making their profit (with or without your worrying!) thanks to the way bitcoin is designed (difficulty and all that) and also not to mention the potential of growth that bitcoin has.