One or more must be met before opening wallet...
  1. It must evoke an emotional response.
    I mean genuine tears. Or at least butterflies.
  2. It must be a reminder of something loved.
    Person, pet, place. Or even a movie or book.
  3. It must be personal.
    There should be a reason that it works for us. No mass produced canvases of London buses.
  4. It must actually look good displayed in the house.
    No 30 ft metal installations. No clashing colours.
  5. It must not cost more than 30% of the monthly mortgage payment.