I think people really read too much into spring rates.  You can't buy a set of coilovers based on spring rates.  Quality, price, and performance come into play.
As I have said many times, if you are completely unhappy with Megan Coilovers, I will accept them back at full credit towards a set of TEIN.
However, I am confident that you will be fully happy and will not return them.  I have never seen any set of Megan Coilovers returned to date.  In fact, no complaints.  The only people that have bad things to say, have never driven on a set.  
If you want performance on a budget, Megan will be the choice.  Use the money saved to upgrade other parts of the car such as bushings, better tires, etc. and enjoy an overall better car.