If any Federal funding is used for radios, most agencies are required to get P25-enabled radios. They may not need P25 immediately, but it could be needed later. Makes sense to buy the radios now rather than have to replace them again in order to go P25. Some systems have both analog and digital talkgroups, and being able to use the P25 groups would require the radio have it unless they use simultaneous groups for the two types.