On my second car (Audi A3), I paid APR $600 to get something like 40 hp and 90lb ft of torque. Not anywhere near as noticeable as this - which I gladly and happily gave Tesla money for. The whiners in these forums are either youths with little car experience (disclaimer - I'm a millennial), or former Corolla/Prius drivers who have no idea about performance cars or mods
They also don't understand that normal car manufacturers have a long history of selling software unlocks for things. BMW's pay to unlock expanded bluetooth options is just the tip of the iceberg for all sorts of things - including performance. Porsche's "sport chrono" option is essentially software and costs $2500. It adds a timer in software + launch control. No power. You can pay Audi like 5K to remove the top speed limiter on some of the RS cars plus get a couple other cheap bits.