Unless you are in a rush, I would recommend waiting a few more months to see how things progress. If it seems prices are sustaining and it really is one of your ‘exit watches’, I guess paying over RRP may make sense.
The problem is I am not very comfortable with the idea of ‘exit watches’.
I am afraid that unless one stops following watches completely and remains unaware of developments, something else will come along that will interest you. And at that time options are to sell something or increase the number. Such is the tough life of hobbyists.