Yes I have one, serial number 00001 in fact as I did a lot of testing work on it when Tony was building them, in fact most of the tables, dividing heads etc on the examples page are mine.
I think they are worth the money as I run a repair shop and mine is in pretty constant use off and on, put as you say they are expensive.
There are alternatives.
The closest is a built it yourself box that is very close to the Division-master, guy called Steve Ward build it and it's somewhere on CNC Zone [ don't ask me where that site is a minefield ] He will sell pre programed chips so it you are not into loading source code into chips that answers the question.
You will still need a driver for the motor and a power supply, the DM has an inbuilt driver but Steve's idea is they are cheap enough and more reliable to buy an off the shelf one. Ketan at ARC sells a good one bigger than the DM for £38 ?
I also am no good at small electronics, probably something to do with the MiG welder not going low enough

so what I have done in the past is to find someone interested who has the skills to build it and test it, then buy all the components for two and we both get one each.
I think the kit of parts for Steve Wards box works out to about £45 but don't hold me to that.
Simplest if the One Step from Roy Harding at DIY-CNC.
Like a DM but no keyboard just a pulse count up and down. You need to approach a job with a spread sheet of count numbers based on divisions steps per rev and gear ratio of the table, sounds hard but once worked out it doesn't alter only divisions and excel will do this for you.
Press the button and stop at the next reading, if you over reach go back a load to take backlash out and go back.
Cost is about £60 for one with a driver in and £46 for one without.
If you can find a working laptop with parallel port or handle a PC in the shop then you can do it for next to nothing. Turbo CNC runs on DOS and will actually run 6 axis, in a simple setup you can have just the dividing head running or run the head and the table as a power feed.
This is also a free Australian program that runs in Windows 98 or 2000 that was written for clock makers and this does the same as above, one or two axis, again free but in both cases you need a driver, motor and mounting kit.
I think that's it for now , go away and study then come back with specify questions.
I'd be lost without mine even though we must make well over 300 sets of dividing plates per year

John S.