However roaming charges within the European Union are currently regulated to a maximum of €0.20 ($0.23) per MB. So a 120MB plan would be €24 ($27.32). That being said, if it isn't delayed by a future proposal, all roaming charges within the EU will be abolished on December 15th, 2015. True international roaming will still be ridiculously expensive, no doubt.
EDIT: My numbers don't include VAT (which is 20% in the UK) - so it's actually currently more expensive in the EU than in the example given in the post.
But the EU price you quote is the legal maximum they can charge you without any package. So that $ 27.32 is the EU equivalent of the $ 750 that's in the post title. (And I think the US price also does not include VAT since, just like Europe, it varies by state)
