Ensuring a high or low RTP is important, but it shouldn't be your top priority if you already have a favorite slot game. Every time I play at a casino, I always play Sweet Bonanza and Mahjong, as they have long been my favorites. I never really think about RTP. However when I want to switch games, I sometimes check the RTP. The point is for me, there is a difference between favorite slots and non-favorite slots.
It really depends on the gambler. back then, I had no clue about RTP, I just played the slots I enjoyed without thinking much about the house edge. since I was having fun, I didn’t bother checking the technical side. But eventually, when the wins stopped coming, that’s when I started digging into the details and realized most slots have nearly the same RTP, mainly because they come from just a few providers. So now, I always consider two things: how fun the game is and what its RTP is.