So I've been using an i7-920 for many years now and lately the machine just hasn't been stable. I want to upgrade but I feel like Skylake isn't well suited as I could use more than 4 cores (I'll use AWS sometimes for certain tasks). Right now there is a fire sale on these E5-2670 chips. They can be obtained for around $90 a pop, memory is dirt cheap as well. Basically I'm debating if it makes sense to invest in Sandybridge until we see some new processors eg Skylake-E or the E5 V4s. Any thoughts on this? Am I better off just going with X99 or does this make sense?