Yeah, I get my bloodwork done pretty regularly. I can just walk in and do it, no long wait times or anything. If you wonder about my bloodwork results then everything's been fine so far, except my FBG is a bit off (90ish), which might just be from poor sleep.
Also, shoutout to the guys who mentioned buying used. I honestly didn't even considered that. I've found a used AirSense S10 for about $250 and an S11 around $350. There are also a few sites selling new ones closer to $550, but it's cryptic what's actually included. Some of the cheaper listings are just the base unit with no tubing or water chamber.
I'll probably go the used route for now since it's way more affordable, and I can always upgrade later if needed after the sleep study.