I haven't ruled out a trailer yet, but the only thing that is rolling across the playa is a truck. I've seen cars coming back and I'm not interested in one of mine being one of them.
I'm unsure whether I'd take the Suburban, or use my budget to buy both a trailer and a newer Suburban.
The advantage of a trailer of course is that storage pre- and post- is far less of a problem (like, not a problem). The disadvantage of a trailer is that IT'S NOT MY DREAM TO TOW A TRAILER, DAMMIT!