I decided to buy mine 2-3 days after they came out, Verizon takes advanced orders, however the stands at costco and same do not so you just have to ask them when their next shipment is and be early and lucky. I was able to buy my X 3 days after it came out using this knowlege.
I went to the VZW store yesterday in hopes of getting a DroidX since my original Droid got stolen the night before. They told me it was a 2-3 week wait, so I decided to get the Incredible instead since I needed a phone ASAP.
The guy helping me had a Droid X and it was HUGE. I almost don't want to carry such a beast in my pocket, so I am happy with the Incredible decision. The Droid X may not be for me.
It was a nice screen though if you're into that!