I read where one of their biggest challenges is obtaining the NVIDIA TX-2 processor in sufficient quantities. That's not unusual in the semiconductor industry for cutting edge processors. To be clear, this isn't even close to the same situation as the 3DR Solo. SD is being totally upfront about it, they're telling you how long the wait is, not requiring that you pay ahead of time and only asking for a refundable
$100 deposit to secure your place in line. That's pretty transparent and reasonable IMO. What else can they do, wait till they had 10,000 of them built before releasing it? Lots of people hesitated and are regretting that decision.
I understand though, you have the $$ and want to purchase it, I'm sure some will be available used but consider that's there's others like you and this is a limited quantity item. I posted up on YT that I signed up for the first batch and some Chinese guy offered me $2K for it.
If I can make a suggestion, get your name on the list, there's no downside to that. Meantime if you find one used buy it, if you don't you still have your place in line. And if DJI comes up with something comparable which I highly doubt you can get your $$ back.
You may be able to buy one right now but it'll cost you, right now it's @ $600 over retail with a week left, it'll likely go for $2K or more.
Skydio 2 Drone w/ Skydio Beacon and extra battery, New in box | eBay