Remember the next M3 will be a turbocharged unit, so more akin to a tuned 335i drive nowadays, but with the added M3 special factor, be interesting to see how they keep the M sparkle though?
The current M3 is the last of the NA era, the M5/M6 V10 is no more (out of production for good) and the M3 V8 will be next for the chop.
Savour it while you can.
Give it a couple of years, I might buy an E90 V8 as a weekend car and keep it for good