Yeah they are not bad for the price they've been selling for, they regularly sell for around $700
They are basically an entry level bike though, still need to upgrade the handlebar's fork's, shock etc etc but they come with a 160cc engine which sell for $500 and upward's by themself's.
The YX160 that come's in the Nitrous is the older model though, it has the oil slinger
The newer YX160 gen 3 engine's are a lot better, then there's the Z160Ho too
I have seen the Nitrous 160 sell for under $500 too, it's all depending on how many newbie bidder's there are wanting them that week.
People alway's want to be the highest bidder though, and it force's the price up, and up
If people were smart they wouldn't bid till the last 15 second's of the auction,
it keep's the sell price way down.
You enter the highest price you are prepared to pay in the last 30 second's and wait till about 15 second's to go then bid, if you win it that's good and you didn't have to pay more than you wanted.
If you don't win the bidding then wait till the next one is listed.
But then again there has been a lot of bargain's listed here too, $2000-$3000 bike's that haven't had a lot of hour's put on them for the same sort of price