I would do it but I'm (again) bitten by the "yeah- but for just a few dollars more..." bug.
RBS is 5 bills delivered- less if you shop around.
But for a "few dollars more" (ok- you got me- $300.00 more), I could have a Backwoods 3400- which is significantly bigger but still not HUGE. I am NOT a member of the "bigger is better"/ "go big or go home" club. I think the 3400 would be a better size for bigger cuts and still small enough to be fired up for the small cooks.
I can't say that I see your point about the UDS being over kill for small cooks. There is actually more grate space on the RBS than on a single grate in the standard UDS- it's just broken up into 3 small grates. The RBS is about 70 #... my SS UDS is about that heavy but is on wheels. The RBS size screams for a cart (or table) to get it up to working height. RBS has a water pan (both a pro and a con) and is limited to about 300*.
This is just me rambling. Get that thing and let us know how you like it!