Yeah, I'm kind of torn between the "looks" of crossbar and no crossbar.
I'm a big fan of motorcross handlebars, for the durability and rigidity. Many stock bars are made of thinner steel and due to high vibration you need some serious bar-end weights to counteract the constant shake.
Aluminum bars have less flex... but they still have flex. Without the cross bar you get a high frequency buzz that feels like the ends of the bars are flapping up and down (maybe just a mm or two) but it is noticeable. With the crossbar the buzz does not really occur unless you mount the grips at the extreme ends of the bar.
The added strength and rigidity are really designed for the loads/stesses of doing jumps, in order to get similar strength without the crossbar, many bar makers are making bars that are 1 1/8" or larger in the clamp area and tapering down to the standard 7/8".
I was really drooling over one of the bigger thicker bars, but that would also mean I would need to swap out the bar risers, and once you start looking at fancy bar risers, you're now going from a simple $65 upgrade to a $95-$200 bar and $45-$200 bar risers..... like anything you can spend quite a bit on fancy bits.
But for me, I've done the 7/8" w/crossbar for years and I love the feel. The current buzz that I experience will be significantly reduced when I upgrade the suspension.
I'm giddy as a school kid for when I can drop the bike off and have everything dialed in; I can't wait to get rid of the stock suspension. (which I'd rather save my pennies up for anyway)