I can afford to buy the latest 7nm components, with TDP no more than I need, undervolt them to my performance specifications, use them their entire functional lifetime or sell them to someone. Either way, these are components fully utilised and easy to run on green energy (500W is enough for a beast gaming rig, 250W for most people). There is minimal waste and no overhead to speak of.

Compare this to generations old server farms that require maintenance, extreme cooling solutions, run virtualisation layers on top of virtualisation layers, necessitate 5G equipment and increasingly high internet costs and middlemen, on top of a user device in the first place.

My computer can also be used as charity for Folding At Home, run my homeservers, and train my AI models. All this instead of purchasing different subscriptions for different servers. In effect, I can optimise the hardware exactly to my needs and use it efficiently to its full extent, reducing waste completely.

Not to mention game streaming will never look as good as native rendering, and "negative latency" is physically impossible. I also don't lease cars.