I've gone through a few periods of disinterest, but usually I knew something will bring me back in...but when I walked out of The Last Jedi, I went through a period of time where I just didn't care. I barely even checked the site for like a year. That was def. my lowest of the low SW period. I can sincerely say, I don't own any merch at all from the ST. Not one thing. It's not out of spite, just...it doesn't appeal much to me. I MIGHT buy some TVC figures...someday...cheap of Kylo, Rey, Finn, Poe, and perhaps a few others...but it'll be pretty minimal. I've always been a cherry picker with everything but OT anyway, my collection is predominately OT. I'd say my ratio would be 80% OT, 15% PT, 5% Mando/Spin Off Movies - mostly because there isn't much made from those yet...I'll pick up a lot more Mando and Rogue One when it's made. I'll likely end up with more of that than PT era once more is made. What really brought me back was the rebirth of TVC, the Sail Barge (though sadly I do not own), Mando being (IMO) great, and a select few other things. It's not that I dislike Black Series, just I REALLY cherry pick those. I've invested my entire life into 3 3/4'' SW. I don't want to start from scratch. So basically any time SW merch basically ignores SW 3 3/4'' OT ...I'm just not as invested in general. Truth is, because I'm so niche with my collection preferences...I spend the bulk of my time here in NON-SW Toy threads usually talking about the movies themselves rather than the merch coming.
But I also always go through phases. I'll always love the things I love, but I'll go like 3 months where SW is my focus, then months where LOTR is, months where Horror is, months where Marvel or DC/Batman are, etc. I have so many (I guess you could call) "nerd" interests that I have to jump around a bit.