At Sea Otter last month there were a least a dozen 32" bikes on display, 32" compatible car racks, 32" tires at the Maxxis booth, 32" rims from a number of manufacturers, and Suntour was showing a budget friendly 32" fork at their booth.
But not a single 32" bike to demo!!
I bought one of the first production 29" bikes in 2002 (Van Dessel Buzz Bomb) and, as a 6+footer, I can still vividly recall the sensation of sitting "between the wheels" on my first venture out. I'm eager to try a 32".
And rest assured, a larger wheel diameter does not result in increased saddle height, nor a higher top tube, or any other frame clearance issues (other than maybe toe / front wheel overlap, which the frame designer should be aware of). Heck, Salsa was showing off a 32" frame in a size small fitting 5'2" riders, and if I correctly recall their narrative, has a female lead designer who falls in that shorter height bracket.