actually there a few schools in england that are exactly in the same business as the caribbean schools. Example: St. Christophers.
www.stchris.edu. in Luton. This school is not a traditional school in the UK, it does not award MBBS or MBBChm degrees, instead it awards US style MD degrees and provides rotation opportunities in the US. Its absolutely not different from Ross or SGU. People in England don't choose to go there, more than 95% of their students are coming from the US or Canada, and the appeal is since its in England, it sounds like its a lot better than going to Dominica or Grenada. However their acceptance standards and their results are no different than the better carib schools.
thats 1 example, there are 2 or 3 other schools in the UK and several in eastern europe catering to the same needs. You can tell whats up when you get tons of flyers and see their ads in random newspapers.