|The AVO 8 goes back to the 1950's in various marks. It is big and heavy, so doesn't fall off the bench easily. It has a mechanical cut out if overloaded, which can give trouble by not staying in, and the earlier models used a 15 volt battery for the high ohms range, which is now not easy to get, and expensive if you can. But 2 9volt batteries and a 68Kohm resistor make a good and much cheaper substitute: the batteries usually last their shelf life.|
It has the great advantage over a DMM that it doesn't go mad when working around a transmitter with a lot of RF, and also goes up to 2500 volts DC and AC without any special probes.
The last price I saw for it new was around the $1000 mark, but they can generally be found in the UK at hamfests and the like for around $60 to $80.
I certainly wouldn't get rid of mine in favour of a DMM, although I have 2 of those.