Im surprised nobody has jumped down my throat and said that it doesnt matter where you train as long as you have the licence
Give 'em a chance!!!
If you do PPL and hours building in the USA, the savings you make on the flying will almost certainly pay for the accomodation and food, with some left over.
For example: I recently went to the USA to do my CPL. I spent, in total, £3200 INCLUDING the CAA test fee, flights, insurance, accomodation, food and everything else you can think of.
OK, it was a conversion- but I did a little over 10h of flight training, most of it in an Arrow. Also I spent 3 weeks in the USA, and after doing my CPL in a week I went to Kentucky to see a friend, then Oklahoma to do a bit more flying, before returning to Florida to spend a night in Orlando and a night in Miami.
When you consider how much I spent on beer and going out...(plus getting from Florida to Kentucky to Oklahoma and back to Florida) to have spent less than what the flight training alone would have cost me in the UK is quite something!
There are lots of factors that determine if you will save money though- I had the exchange rate on my side ($1.8= £1) for one.