[NickNameNick]

I'd expect 2 small pieces to weigh more than 1 big one.

So I'd expect you to see the weight go up faster than the part count.

Not sure if that would confound or exagerate the trend.

[bombcar]

They’re not replacing a 1x4 with 2 1x2s, they’re just designing sets with more pieces per pound (by having smaller pieces for decoration).