Buy Bitcoin before the DIP, buy during the DIP, and buy after the DIP. Bitcoins isn't going anywhere anytime soon but most DIPs will be long gone and long gone for good. There are so many DIP price you can't buy Bitcoin at but you will always have those Bitcoin you bought during the DIP at an higher worth in the future, cease every opportunity of buying during the DIP, buy as much as you can at the moment cause DIPs are temporary but Bitcoin stays forever.
Kidding aside, I agree that dips are opportunities to buy even more coins. As long as we have spare money, I always recommend to accumulate, accumulate, and accumulate more coins. Imagine those who took the huge dip in 2022, already tripled their capital by just holding their coins. Every correction = opportunity. Every dip = chance for us to get much more profits.
On the other hand, I don't think that Bitcoin will be forever... or at least that's not how I think about Bitcoin. Who knows? We might see another cryptocurrency that's has the same features with Bitcoin, but better ones. I'm not against Bitcoin so don't criticize me, but with how the technology is evolving right now, there's a chance that it might happen. We just don't know when though, and if it will really happen.