It is really important to choose what's right for you. No point in paying extra to run the M4 if you're not going to use its capabilities and indeed be frustrated by its compromises. Then the costs just seem like costs and money wasted.
For me, it's worth every penny, every mile.
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Current: Porsche 911 991 C4S, Porsche Cayenne Turbo, Land Rover Discovery 4. Gone...G01 X3 M40i, Cayman S 987, F31 340i, Cayman GT4, F82 M4 CP, Lotus Exige V6, G20 330e, F30 330e, Boxster S 987, F31 335d, Mini Cooper SD, E89 Z4, E90 330d 320d, E60 520d, E46 330d 320d, MX5s, E30 325i