These do it all properly. All the major compound movements and isolation exercises, with sound mechanics, super materials, useful adjustability, and plenty of built-in safety.
They use weights for pressing and pushing movements, and pulling movements where desired. They offer a wide variety of the best free weight compound - multi-joint - exercises, such as presses, pull downs, rows, squats and deadlifts, and a big range of isolation - single muscle - exercises. They permit multiple grip positions and angles of attack for variety and more effective strength gains. All but one except the Rack and Lat Tower Option include a bench. Most important, these are all heavy, solid and thus a pleasure to use - the main thing that counts long term. Cheap may get you started, but can easily make you stop.
These capabilities may seem obvious, but much of what is offered with cheap (and sometimes expensive) equipment doesn't match those words above. And where many cheaper products carry brand names that sound like they come from the US, yet are unheard-of there, these have strong and long-standing reputations in the world's biggest markets, particularly the US.