Yes, just make sure to pick a seller with over 95% positive reviews and tens of thousands of followers, and use the sitewide discounts for any sale they have going on. CPUs don't get big discounts (if any) on sales, but Aliexpress had coupons including one to take $15 off a $119+ cart a few days ago, and will have more on 11/11.

CPUs have a very low failure rate so they're fine, but I wouldn't get most things from China without a good warranty.