aji o shimeru
to develop a strong liking for something that one has benefited from before (and thoughtlessly keep doing the same or similar things)
It usually contains a negative connotation like naïve or greedy. It alludes to how you keep having the same food (or visiting the same restaurant) after you’ve enjoyed the unforgettable taste.
He had an unforgettable great experience of making profits from stock investment, and now he started investing in Bitcoin.