Well you have the alpha world and we are the (analpha)beta world , our feedback is considered as stupid and not consistent with the strong feedback from other sources
1: you loose a lot of units fighting in pvp
2: always the same opponent is booooooooooooooring
3 : you better play GBG , less loose of units and bigger chance to have rewards
But i certainly must be wrong regarding the almighty other sources.
Suggestion: give us a fifth level expedition with special prices, players will invest more there then in pvp , put the pvp-tower somewhere in a drawer where the sun does'nt shine