>> Nexus was a reasonably priced unlocked reference phone targeted to Power Users

Nexus One: $530 Nexus S: $530 Galaxy Nexus: $200 with standard 2 year contract (basically the same as any flagship phone at that time) Nexus 4: $300 Nexus 5: $350 Nexus 6: $650 Nexus 6p: $500 Nexus 5x: $379

Arguably Nexus 4 & 5 were the odd ones out with their relatively low pricing. The others (excluding the 5x) were pretty much on part with flagship phone prices at launch time.