People should *ALWAYS* use DHCP for the access points. If the network IP scopes change and the APs are statically assigned, the only fix is to console in to each AP and either change to DHCP or add a new static, which can be *very* labor intensive.
If the thought is that each AP should have a known and fixed IP address, then DHCP reservations should be used to assign known IPs to the AP's known macaddr.