...and that's not including books and equipment, cost of medicals, exam fees, skills test fee and CAA licence fees. These all mount up as well.
The figures given are realistic; anything else would not be fair. How many hours do you have so far? That might be a guide as to how soon you could pass. You may have a natural aptitude for it or, like most, there will be aspects with which you will struggle.
There are other options; go to the States for a couple of months and learn full-time at a JAA school, return to the UK and just get checked out. However, this is not without its pitfalls and needs to be researched and costed carefully.
As a guide, I did my PPL on a Schweizer 300C (not one of the cheapest trainers) full time in 2003 in the UK. Shortly afterwards, I totted up everything it cost me (including all fees, books, accommodation etc) and I spent just over £21,000.
Cheers
Whirls