I am trialling Kindle Unlimited. I am aware that one can only read 10 items at a time before having to "return" them. However, can you put as many titles as you want in your wish list?
Only the vaguest of recollections from an old Amazon forum, but think someone mentioned experiencing issues with a Wishlist when they had many hundreds of entries. (Personally, can't comprehend that scenario as I only have a handful of Lists and about 10-15 items on each as I regularly purge, only keeping products of current interest.)