For $1.91, is this http://www.ebay.com/itm/Digital-Multimeter-/291005261135?pt=LH_DefaultDomain_2&hash=item43c143e54f#shpCntId the world's worst multimeter? I would love to see someone zap it with 2.5k volts from an insulation tester.
Definitely not. I have owned a DT830B for ten years or more, and it is still working and giving reasonably accurate readings.
The object to the left of this picture may qualify, though:
All three meters are connected to a power supply set to 10V, as can be seen from the Fluke and DT830B displays.
The analogue meter, however, thinks that it's just over 8V, despite having been cleaned up and adjusted.
It's Japanese, an Eagle Products TK-25, which I liberated from my Dad when I was about 10. By comparison the DT830B is a masterpiece of precision engineering.
(Edit: I have just spotted that you specified a DMM, but my first DMM was even worse in terms of build quality - it disintegrated many years ago.)