I bought a 1200 in the Spring of 2007, converted it to 1250 in 2010. This is by far the toughest single electronic tool I have ever owned (including back in the professional auto mechanic days).
The 1250 is rock solid, the AK900 is great for resi work.
There is a thread somewhere about building yourself clamps for the temp probes (probably in the thread somewhere).
The weak link of the DC's is the wire to the temp probes and the plug into the digital head. I modified that part of mine... now it has NO issues...
Given the multiple weak links to all the other digital heads, as well as the lack of reliability and not very rugged... DC is still the king IMO.
Richard; Were you in SC years ago? Thought I remembered you posting from there years ago.