Good quastion! But to many variables in my opinion, but if you have to stick to the light throughout tanks life, I'd imagine you need to get stronger light incase you decide to go full sps in future. But you not going to use this same answer for someone who is for sure will decide that he will stick to fish only or softies tank.
But im following along, as im curious as someone who switched lights 3 times over 9 years and thinking of switching again....
When a question has a lot of variables and a lot of ways to be right or wrong, I’ve found the best way to get to a solid answer is to rephrase the question.
So here it is...
“Your wicked smart grandma just set up a tank. She calls and asks, how do I get these lights right the first time? Get it right and I’ll double your inheritance.”
What do you say? :)