Almost every car I've had (from my CRX Del Sol through to a DC2, DC5 and EP3 then a few MG ZT V6's) I've lowered for handling and looks etc...
My 728i handles fairly well for a big, long car but the arch gaps are a little OTT at times IMO and I'm going to look to lower the car in the very near future
Now coilovers 80% of the time (in my opinion) are overkill as most folk just use them to lower the car BUT when you look at the cost side of it; coilovers vs shocks/lowering springs can be very close price wise!
The FK range of coilovers get really good reviews (predominantly in the States) and can be bought from Germany for around £600 inc shipping. Bilstein shocks and either H&R 35mm or Eibach 30/25mm lowering springs are around the same price; if not a bit more expensive dependent upon where you look
To me coilovers would be easier to install as they're more of a plug & play jobby whereas shocks/lowering springs obviously involve taking the suspension set-up apart etc...
On the flip-side coilovers can be a little too harsh at times; even with damper control whereas springs/shocks are set and that's it...!
What do you think; go for coilovers and make life a little easier and more adjustable or shocks/springs and once done; leave it?