Ask yourself: How are you basing a 'price' increase?
In other words, what item(s) are you using to base that it takes more of 'XYZ' to procure ownership of 'ABC'?
Yes, i realize on the face of it that it may seem like a 'stupid' question to some, yet might provide a deeper thinking for others. According to my calculations, the price or Patek/Rolex and other items has remained within a certain range for decades. It really is simple math, yet the trick is what you use as constants and variables.