If you have a US shipping address, and go to pick up items regularly, the main benefit of going with ebay, amazon, etc is you get your items faster, but probably still at a slight premium over getting something from Aliexpress that might be shipped from China, Taiwan, Hong Kong, Japan, Thailand, etc that occasionally goes by air mail and arrives in less than 2 weeks, or more typically, and particularly with large items like you're looking at, by sea, which in that case takes 4-6 weeks, but usually around 4. Pretty much everything ships within the US 2-3 days, or up to a week from ebay, amazon, etc.