It is cheaper now, but a full DMA setup costs about as much as an entry-level PC and you need a second PC to run all of the cheats.
What he's demonstrating, using image recognition, is pretty cheap and probably even more undetectable but you 'only' get aimbotting and there is a bit of latency due to the neural network processing step. DMA cheats gives you aimbotting and all of the ESP info instantly.