Is the Hulk further expected to go up in price?

[Batman76]

So people, the hulk is being offered in the grey market for about £17000-£18000 currently in the UK. Pretty much same or similar in other countries too, I hear.
My questions to all of you is, do you see the prices rising beyond the current astronomical price? The guy at the store said his personal opinion is that the Hulk has hit the ceiling price and may appreciate, but not a lot more.

Do y’all folks think that it’s going to go up further exponentially, say in the next 5 -7 years?
I’m considering buying one and am thinking if it’s wise to spend close to £18000 On a watch will will only appreciate slightly in the next few years?

Would love to hear your opinions.
Thanks