Do you intend to go commercial, IR, ME or something else for which you need the full PPL? Or do you just see it as an (expensive) hobby, and want to experience the magic of flight?
In the latter case, you may want to consider an NPPL on Microlights or gliding. Both are much cheaper but equally demanding and satisfying.
If you cannot afford 12-20 flying hours per year minimum after you gained your PPL (or other license), don't even start. The legal minimum for PPL revalidation by experience is 12 hours every 2nd year, but if you fly that few hours you can hardly be called safe and proficient. Plus, it will barely get you out of the local circuit anyway.