You do not have to spend a ton of money for a top-level landscape photography camera. This excellent video discusses one particularly good camera that might be flying under your radar.
Coming to you from Gary Gough, this great video discusses why the Canon 5DS R might be the best bargain camera for landscape photographers. With a 50.6-megapixel sensor and no anti-aliasing filter, the 5DS R offers the sort of extreme resolution often desired by landscape photographers, and it gives you access to Canon's deep library of EF lenses. On top of that, it can be found for a little over $1,000 used or just a little more new. The one drawback is that it generally does not have the best dynamic range, though exposure bracketing is always an option. Another great option is the Sony a7R II. A used model of this camera normally comes in at about the same price as a used 5DS R, and though you take a slight hit in resolution at 42 megapixels, you gain more dynamic range. Beyond that, you can also adapt just about any DSLR lens to a Sony camera. Check out the video above for Gough's full thoughts.