For us, we are ignoring them. For the same reasons we ignore all the airhead smartphone crap. Fashion statements for the pierced generation.
My ten year old Subaru has a digital clock. That is as far as it needs to go. I do fiddle with the engine CPU for more power of course..............
You have a turbo or nonturbo? Those Cobb AccessPort ECM modules are nice, five programs, switchable pretty much on the fly if the gas in your tank is up to it, from economy mode on regular unleaded with turbo boost disabled up to I believe 325 hp on 110 octane racing gas. You’d need a catback exhaust to make the most of it, Subaru boxer engines sound good with the right catback. I’ve got an 07 Legacy GT Limted wagon, it’s a fun and practical car. Friends on ski patrol had them in college, I liked them but it never entered my mind to buy one until this car.