Upgrading to Asus P8z77 mobo but which one?

This one (P8Z77-V) hasn’t even written one bad thing in the Event log since coming on line in September.
sorry didnt understand this , i only wish the P8 Z77 - V , or lower models , had just 3 Sata III / 6 Gb ports , not one of them in the lower cheaper segment with this feature , i would wonder if a PCI x card with a Sata 3 / 6 Gb/s might give the same performance , then i would b happy even with a P8Z 77 - V lX CHEAPER , N FULL ATX with 3 PCI slots 4 backward compatability … wish Thunderbolt was included , but dt see any TB device in the market yet … so. strangly , Asus M/ boards 4 AMD , has a lot more features @ a cheaper rate… think i should b now going 4 a i 5 3450 … would appreciate suggestions. thanks sm