1d mark iv instead of a 5d mark iii

Just Some Geek wrote:

Yes, the 1D4 has held its value quite well -- a bit better than the 1D3, if memory serves. I picked up a 1D3 (LNIB) about two years into its life cycle for $3k. Toward the end of last year, a 1D4 (also LNIB) cost me $4k.