old vs new

this is a strange question that may have been answered already.

If one had say $1000 to spend on an amp or preamp, would one be better of buying somthing new or pick up something that is 5-10 yrs old. I mean would a Mccormack DNA 0.5 be better than a new Odyssey stratos. Or would a Sonic Frontiers SFL-1 be better than a new Jolida preamp for the same cost.

Advancement in electronic components/technology must count for something or is the design of the unit/quality of parts that is more important. I hope i'm making sense