Calculators you regret not buying?

[Garth Wilson]

I don't know if this qualifies, but the only thing I might wish I had bought was more modules for the 41 and 71, and more HP-IL accessories, particularly the HP82166A HPIL-to-parallel interface.  (I do have the HP82165A, but it's not as flexible.)  I bought what I could afford at the time though.  I've mostly gotten what I wanted later on eBay and also bought Diego's Clonix-D module for my 41cx and installed ROM module images, including ones from Angel which didn't exist back in the day.  The long list of HP-41 modules, accessories, and books I have is at http://wilsonminesco.com/HP41intro.html .