Sherry: No, research is enough in any field. By the time you will be there in three to four years time, your research will be hopelessly out of date.
Gaining half decent employment in Spain is a pipe dream until of course your company transfers you. Starting your own business is not feasible either, apart from having a niche product/service and not to mention the law, taxation, civil service, working practises etc.
Finally, while living in the middle of no where is very romantic etc. It is very unsafe & if you need to excess hospitals etc in emergency it could be a matter of life and death.
Finally, will you still leave the USA if Obama wins ???????????