As a big brand consumer item Amiga is dead. The people who remember the brand are now not of the age that buy computers regularly enough to warrant a revitalisation of the brand name. Not even Commodore (arguably a more widely known brand name) had any success revitalising their brand.
.
While I'll agree it may be irrelevant today, I wouldn't say Amiga users are old/past it. At lot of us (particularly in europe) got them as kids. I'm 29 and buy new machines every 18 months-2 years. I got an A600 for xmas when I was 11, my younger brother is 23 and he remembers the Amiga very well, we still play Lemmings, Hired Guns, Lotus, etc. A lot of people in their late 20s-early 30s were Amiga users as kids, and people in their early-mid 20s will have have older siblings who owned Amigas so know them too.
I wouldn't say the ex-Amiga users are all now geriatric patients.