Weber Q120

We bought ours in Fall of 2010 when we picked up our 152 in WI.  Weber makes 3 sizes, the 100s, 200s and 300s.  Thermometers and steeper/higher domes were the feature of 200s and 300s which were the bigger models. The last two digits of the model were supposed to mean whether the grill was gas, charcoal or electric and also what accessories it came with (such as the flip-out tables).  

We had to make a choice between the 100series and the 200series bc we wanted thermometer convenience and the higher dome to be able to put a cast iron skillet on the grill and still shut the lid but wanted the smaller size and lighter weight of the 100s.  The 200s in our opinion were just too heavy to be portable but not big enough to be that useful.  300s is too big for 2-4 people in a pod so we went back to the 100s, got the model that came with the table (120), bought a separate thermometer and left the cast iron skillet at home.

So this whole "New" 120 is both annoying in the sense that a) it was exactly what we had originally wanted - it has the best of both worlds (100 series size plus better dome shape of the bigger grills with a thermometer) and b) it's confusing because if it's true that the new and old 120s are not interchangeable, then there's going to be problems further down the road when we need to get replacement parts and accessories.

A new model number would've made so much more sense.  

I just spoke to Weber again and it seems the rep on the phone won't sell me a "replacement" new model Q120 lid. Booo.  

I'm going to email them and see if I get a different answer.   

I called Weber today and the phone rep claims that the new and old lids are not interchangeable and cannot be retrofitted, which I doubt since the base is the same.  I am now on a quest to find the part number for the new lid.