I can see where you're coming from. Maybe the reasons are different, but for me, even though LSD is a 12 hour experience with intense physical stimulation, muscle tension, etc., mentally it is much less intense (dose for dose) compared to plant substances like mushrooms. Even though LSD is harder on the body, I could easily take it every 2 weeks, or even weekly if I really, really wanted to (and lots of people do). I found the magic of LSD wears off quickly when taking it that frequently, which is not too surprising, really.
I find that taking it that frequently has had a considerable toll on my mental state as well, I found it takes a big ol' chunk out of my short term memory in a similar way heavy weed smoking does.
LSD is absolutely magical in its own right, but is not as self-regulating as mushrooms are for me.
Mushrooms set my life straight in every possible way and satisfy my tripping needs for a month or longer (sometimes 2, 3), whereas LSD is more recreational for me.
I am still relatively new to it, but I think I will start to take it less frequently and in higher doses from now on. Will be taking both AL-LAD and LSD at a festival soon though, which I am immensely looking forward to. Lysergamides definitely have a crystalline pure magic of their own. I have never experienced colors the way I have on LSD, ever, and the afterglow and worthwhile realizations are entirely different from plant medicines.