If my Brockway Norwood Director were to die, I would get its nearly direct replacement: the Sekonic Studio Deluxe. In fact, since they are not that expensive, I am considering getting a new one anyhow.
If my Pentax Digital Spotmeter were to die, I would probably get a used one, or a Spotmeter V, to replace it, and have it serviced by someone here in L.A. I don't think I could bring myself to spend $540 again (after tax) on a new replacement meter.
FWIW, my Pentax Digital Spotmeter batteries tend to last only two years or so.
I like the Digiflash and Digisix for their size and weight, but I find them too slow to operate for most of what I shoot, and I think that they cost literally about three times what they should cost. I liked them a lot more, and used to recommend them before I found out what they cost. I figured they were perhaps $60 at the highest. They are a Grade AAA Gold Plated Rip Off, IMHO.