Considering Bricasti and Lampizator

I'm looking for a new DAC in the sub 10k range (used). After reading about several options here and elsewhere, the ones I find most intriguing are the Bricasti M1 and the Lampizator Big 7.

Has anyone directly compared these two great DACs? If you have: any thoughts about the differences, and which you preferred?

Just to throw a few talking points out there, here are a few things which make me a bit shaky about each option:

Bricasti M1:

Introduced in late 2011, so it's 3.5 years into its life cycle. Can it really hang with more recent offerings? Is a newer model coming soon?

Lampizator Big 7:

A dizzying array of options (caps, DSD, tube rolling, ...). Is this really the way off the merry-go-round?

Lack of stability in their product line, with new models and options coming out continuously. How does this affect resale value?