sure two of the honda eu2000-eu2200 are light weight, but also easier to just "walk away". not easy to bolt down, and cables can be cut easily.
and for my small rv a eu2000 was not enough for my needs (no solar).
i do like my honda eu 3000. was very easy to bolt down. setting it up now with extended fuel and remote start. none of any others offer such.(true a way to add a extended fuel to a honda eu2000, eu2200?).
sure these items are a add on from after market, but all the other offerings combined do not even equal the numbers of eu3000 sold. so i doubt anyone is going to bother making such for them.
and only time will tell if any others have the ability to survive as hondas do.
my eu3000 sat 10 months just sitting out in the weather with only a blue tarp over it, started on the first pull (was just rotating the motor), and had a tree fall on it, no damage.
but then i only need 30 amp max, so i am golden.
next rv????
it would be great if as others have said about honda making true rv styled generators.
.