Well I must be the straggler in accumulating kits as I possibly only have around 35 kits still in boxes not started etc that I can see
I wouldn't worry about it. I have one kit on the go (special hobby He '113') and precisely two in the stash (Revell He 219 and Tamiya P-51). At least I can be fairly sure that I will finish them all, barring accidents or acts of God
I have had the Tamiya P-51 for several years, for some reason I've never really fancied building it.....one day....
Cheers
Steve