the official one is made cheaply, just has a high profit margin.
Funniest thing I've heard all week.
Take bench grinders or heat guns, you don't need to buy a Milwaukee when Riyobi and a hair driver (for heat shrink) works well, but for soldering irons it's different. A decent Weller station or legit FX-888 should be considered the starting point, and nothing less (bootlegs included) should even be considered. Something with commonly available tips, not for replacement but for upgrade/change out.
If OP takes care of his tips, they'll last him decades or more. In terms of tip care, the FX-888 comes with everything you need.