Whilst I haven't gone for an NPPL yet myself, one attraction I can see and one which the 'anti lobby' ignore is that it is only the NPPL that will give me any sort of credit for my gliding hours!
Maybe if the JAR PPL still did (as the old one used to) there would be less support for the NPPL but whilst it doesn't, all things considered the NPPL doesnt seem a bad idea. Especially if as Beags suggests you can then convert it to a JAR one later on if IMC & Night ratings appeal!