The very reason concentration was introduced as a deliberately HARSH restriction to the number of active spells you can have on an given time is because they were actively trying to prevent the buff-stacking syndrome that was so prevalent in previous editions of D&D.
Not to mention that with bounded accuracy the effectiveness of stockpiling multiple buffs one over the other would be even more significant.
We can discuss if these restrictions aren't a bit too limiting in some circumstances (some bland and situational buffs could probably do without concentration as a pre-requirement), but the mechanic did a lot of good in general.
P.S. Kinda lost track of how we went into arguing Concentration again, given that magic missile is NOT a concentration-based spell, anyway...
Last edited by Tuco; 26/08/22 12:47 PM.