I have had (8) Honda Accords since the 1970's. I personally drove all of them to about 125,000 miles. Two were purchased by a neighbor - he took one to 280,000 miles and was pissed he didn't make 300,000. The trunk rusted through and would not support the gas tank. The 2nd he currently owns and it has about 240,000 miles. None of these cars has needed any injector work (admittedly some had carbs) and only one fuel pump was replaced.
I just don't see the need...or benefit.
By the way mixed into the (8) Honda's was one Mercedes that spent more time in the shop that all the Accords combined. One was enough.
John from Pa