I guess what I'm saying is where is the line drawn? Hobbyist like the new big models cu they're cool. GW sees it as an excuse to sell really expensive models. I don't really think the super huge models really belong, though, and it gets to be distorting, tactically.
Ork battle wagons are a pretty good example. It looks cool as hell, but the thing is actually longer than some "ranged" weapons ranges! It gets to a point where the size of the model seriously distorts the threat ranges involved.