The kits use samples that are layered together to simplify the performance of the song. They also only contain the bare minimum samples to complete the performance. Where as the sample packs contain all the samples, separated, normalized, labeled and filed in folders. eg, kicks, claps, stabs etc. If you don’t plan on using the sounds in a Maschine kit performance, then the sample pack is more useful. Although, even if you have the kit, you would still find the sample pack more useful in your studio productions.