Do you want me to answer or is that rhetorical? If you want to know, the answer is be smart about it... If it's a seller with less than 1000 feedback (1000 isn't even a lot for good, trustworthy sellers, but I guess you have to start somewhere,) especially a seller from China, be very wary! I don't mean to single out the Chinese, but this a common scam on eBay with accounts from China. The feedback should be at or very near 100% for starters...any negative feedback, look into it. Is it due to people not receiving their orders or complaints about the cheap quality? Yes, cheap goods are probably going to lack in quality. Also look at what they're selling. If the feedback doesn't match up with what you're looking to buy (ie: the feedback is for a bunch of $2 pins while the item you're looking at is a more expensive instrument,) it's probably a scam. If the price is suddenly much less than the previous positive feedback, they're probably pulling a Robhe where they were doing legit business to build trust, and now they've moved on to the scam part of the plan. If the feedback is all private, it's probably a scam. If the feedback is left by a bunch of new eBay accounts, it's probably a scam. I'm not saying you shouldn't ever take a chance on a good deal, but be smart about it...or don't. I'm not eBay. I won't be offended if someone ignores everything I said and continues looking for ridiculous deals and gets banned or loses their MBG privileges. Was just trying to offer some friendly advice that the takeaway here probably shouldn't be to keep pressing your luck on bad buys cuz eBay's got your back!
On the other hand, things that might be worth taking a chance on with your eBay protection? Good deals from sellers with 100% feedback (preferably lots of it,) the feedback matches up with what they're offering at similar prices, and the feedback looks to come from legit accounts with good feedback numbers.