Microlights are not necessarliy the cheepest way to get a PPL its a myth, but they are cheeper once you have a licence.
If you go the SLMG route at somewhere like OSF at Enstone airfield its about half the price of getting an SEP licence (the old A licence) then you do a few hours take a conversion that takes an hour or so and you have a full JAR SEP Licence, you can go almost anywhere with that.
I did it that way and now have over 1,000 hours most of it in Europe, and checked out on 26 types in 16 years of flying.
Ian