Medicine Decision: Buckingham University (UK) vs 2nd Faculty of Medicine (Prague)

I got an offer from both Buckingham University at the Buckingham campus (around 1 hour 30 minutes away from London) as well as the Second Faculty of Medicine at Charles University in Prague. I am not sure which one to pick. Buckingham has very high fees but it is a 4.5 year degree whereas Charles University is a 6 year degree but considerably cheaper (around £100,000 difference), however I have to learn a language. I was wondering if anyone had any advice/shed some light on what would be best to pick.