Come on Uwe, it's a Midtown SIGNATURE. We all know you don't collect for fins or cutaways, but this one has a special NAME! Same goes for the 50th Ann. Thunderbird. You owe it to your friends here who live vicariously through you and your buying prowess.
That Sig. IS quite a tempting instrument. I wonder if the value would go down if I routed it out for a TB+ in the TB II position? In fact, I'd probably put one in the mini 'bucker spot as well.