Yah all good questions and good responses. Suspend is great for this handheld, but as @PlasticExistence@beehaw.org mentions linux isn't great at suspend out of the box and having a very configurable embedded system like the steamdeck lumps it in this basket.
I got one of amazon.com.au in June. The price was pretty much the same as the direct conversion from USD, and it got delivered the next day. Obv a 3rd party seller but have been super happy with the purchase.