Apparently their dual extruder implementation works far better than any other on the market which is a huge deal for printing supports that don't stick. Several of my friends have them and all love the print quality (it's far better than anything I've gotten out of my printers). The pricing is admittedly great too.
I don't have any issues with my i3 so won't be getting one anytime soon, but I absolutely see why people new to 3D printing will go straight to Bambu. It sucks that they actively chose to be bad for the open source community they built their company on top of.