Epilogue...

With the conflicting advice from Donny and Dave I bought both an double-braced X-stand for $50 from GC and a single-tier Standtastic stand from Musician's Friend with bag for $100.

I liked the Standtastic stand.
Pro: quality was good, it was light-weight, it fit well in the bag which had room for more tiers, it was very versatile, it was well designed
Con: It’s deep, compared with other solutions (see below). The front/back brace attaches with wing nut and has two small washers. I can image it being a little hard at times if setting up where lighting is dim. However, I am sure a quick trip to Home Depot could have yielded a solution.

Result: I kept the X stand and sent the Standtastic back. The reason has to do with space. It is not unusual to have a gig where stage/floor space is limited. The arms of the Standtastic stand sits on the outside of an "A" frame. The frame extends out as far back from the keyboard as the keyboard extends out from the stand. This makes for a very deep footprint, relative to an X-stand. The X-stand has half as deep a footprint since the keyboard sits on top of the stand. For me, my favorite stand is still the quiklok WS-550. Four adjustable legs and a flat rock-solid surface. It was ideal when I was using an 88 weighted-key Roland FP-5 piano. My current keyboard, a Tyros 2, is much lighter and the double-braced X-stand does the job of giving me a very stable platform, even when I play hard. I will keep the WS-550 at home and use the X-stand for gigs.

So Dave is right and so is Donny from their perspectives. As always, you have to decide what works best for you. It’s the ironing board for me.