Should I replace my driver?

I did something really stupid and knocked over my beloved KEF LS50.  I dented the gold driver--it sounds fine but doesn't look great.  I talked to the KEF factory and they will replace the driver for $150.  I don't live to far away and can actually just drop it off for surgery.  My question:  is there any reason NOT to do this from a sound standpoint?  Is it correct to assume that once I put 100-200 hours on the repaired speaker (i.e: break it in), it will sound virtually the same as my other speaker with the original driver?  Thanks!