LC90 just is big for pocketability/travel. My LC90 is more what I use for the frequent use which in my case is my go-to when I leave house to walk dog when dark so its largely just in my hand for an hour or so.
When I’m packing for travel I want something smaller, for that an LC40 is just smaller. The LC40’s other advantage is its cost, so its the type I’d own many of any keep them in lots of places for more emergency situations.
The LC130 is a real monster of a torch it is huge. It is so big it hasn’t yet left the house as the LC90 is easier to carry. The LC130 has been used just once in a power outage when we put it on its end pointing to ceiling to light up a large room.
So currently I’m waiting for a LC40 discount, there is a two-pack but I’m waiting for that to come up say $14.