not necessarily, AK100Mk2 and AK120 are great DAPs ... i still use RW-mod AK100 which beats DX50 (even amped) hands down.
AK240 point is all about exorbitant pricing and corporate greed. still AK100Mk2 is excellent DAP and spot on the market and AK120 is a well made premium product.
so do not see the point about X5 comparison. i assume X5 will be competing with AK100Mk2 and DX90 mainly.