There would only be two reasons to do that and both are budget related.
1. The twenty dollar difference between the two CPUs means something else can be upgraded/higher quality or kept in your pocket.
2. The expense of DDR4 is a deal breaker since you already, if you do, have DDR3, but since DDR4 is dirt cheap now it would be more of an overall budgetary concern than being strictly related to the DDR4.
If you have to buy memory anyhow, regardless what platform you go with, then the Skylake build makes more sense by a long shot. Just the potential for future upgrades is worth the twenty dollar difference.
Also, you couldn't use "everything gam3r put but with an i5 4460" because you'd need a different motherboard and memory, so it...