My Eibach springs were under $300 shipped new and new E36 bump stops run $50. Alignment is necessary with any suspension mod so that's a moot point.
I agree though, springs for cosmetics and minute dynamics improvement, Coilovers if you really want to accomplish something with handling characteristics.
I went with springs because it was cheap, retained EDC, and is a benchmark for future suspension upgrades when my shocks need replaced-full Coilovers then.
Where are you in cbus? I live downtown but work NW of Dublin.
2008 E92 AW 6MT ///eibach's///ARC-8///Muffler Delete///104k orig rod bearings