Hi, I'm tempted by the Olympus cashback offer. I can get the 9-18 for 325 euro + shipping. I have the Oly 12-40 and the 9mm BCL and I recently found out that the BCL is a lot wider than the 12mm, even defished. So...you know...I'm wondering if...maybe I should...it's a good offer... But I just got the 75-300 and this quarter budget is gone. And the 9-18 never really was on my wishlist. So, the real question: is the 9-11mm range worth the price and the space? If you have both do you bring around and use the 9-18 much or is a "just in case" lens often left at home to save space?