Bottle for Collection, which one? Port Dundas or Kavalan

[xcompl]

Looking at adding 1 bottle to collection, which you think will appreciate better.

Port Dundas 50 Year Old 1965 (cask 11838) - Sovereign ( I guess this one closed so no longer will be made?)

Kavalan Solist Pedro Ximenez Sherry Single Cask Strength (half price of the other)

Any recommendations?

[eelbrook]

Port Dundas 50yo.

Your chances of seeing another bottle of this age from this lost distillery isn't high