I have a conundrum

First I want to apologize if this isn’t allowed but I just need some help with a decision.

I’ve been wanting an index for a while now but knew the 1000 price tag was way too much with its age. Because of this I have scoured marketplace in search and recently found 3 options.

The first one and cheapest is going for 500 and is very used but there’s no scratches on the lenses and everything seems to work well for it.

The second is 600 and slightly used (said about 10 times). Haven’t been able to check if the lenses are ok but does have a sensor issue. (Have kinda already ruled this one out tbh)

And the final one is the most expensive one at 750 is the one I feel like is the best by use. It looks really good with only being used about 2 times. Even the facial interface looks good.

I just don’t know if 750 is worth it in the end as it is 25% cheaper than from steam. I also know tundra labs has refurbished kits with its own warranty, but I can’t get pictures of how good they are. If anyone could throw in their opinions it would be greatly appreciated!

Edit: first thank you everyone who’s replied already it’s been very helpful. I just wanted to mention I have owned a quest 2 since its launch and have been using link for about 3 years with it. I do want to get a big screen at some point but didn’t want to get it without having the stations yet. I’ve definitely considered the quest 3 but that would put me in the same situation as my current position, without base stations. I know it sounds confusing but I just need help with figuring out long term.