BogartI've been buying on aliexpress for several years already. It's a chinese counterpart for eBay, and they have same protection functionality eBay has (even if you're paying directly using credit card). They even have PayPal conuterpart(AliPay), though I don't use it.
Shit can happen on both eBay and aliexpress. I had several issues on both platforms and always had my refund (though it takes somewhat longer on aliexpress). Same rules apply to both aliexpress and eBay: careful listing reading and investigating seller's rating and feedbacks.
Having this little knowledge, one can shop on aliexpress as safely as on eBay(I use both interchangeably). Hope that clarifies things.
$36 for another nice titanium EDC/emergency pen http://www.aliexpress.com/item/EDCgear-Self-Defense-CT4-titanium-alloy-Tactical-Pen-Outdoor-attack-survival-pen-CNC-Super-hardness-P/32229058272.html
$52 for another brutal titanium pen http://www.aliexpress.com/item/Titanium-alloy-tactical-pen-tungsten-steel-glass-impactor-edc-tool-Driving-survival-pen/32362333894.html
$89 Nitecore-branded. Same as here (same shell + refill insert) but with extra spiral cuts and bonus aluminum case http://www.aliexpress.com/item/2015-New-Nitecore-Titanium-Pen-NTP10-with-Matte-Aluminum-Alloy-Pen-Case-Hollow-Carved-Body-131/32357983601.html
$90 another cool titanium emergency pen http://www.aliexpress.com/item/CooYoo-CAZO-Pen-Ti-Titanium-Cool-Bamboo-Tactical-Pen-stick-Multi-Function-Pen-Cuban-Cane-Keychain/32354567443.html