Hey guys. i brought asrock b75 pro 3 for the intel i5 3570k , i realised how this is a bad choice as it doesnt support overclock, that wont be a problem now as i wont be needing it soon. how ever it wont always last me. i was thinking of upgrading when i need it. I havent been into computing for long maybe one of you older guys will be able to anwser me. i was thinking how much would the asus sabertooth z77 cost in around 2-3 years time ? and also how much would asrock z77 pro 3 cost in 2-3 years time ? will it be worth upgrading to these boards when i want to start to overclock or will i have to go with a newer board for those times ? ( who nows what it will be like then) thanks for the help guys.
Most motherboard models have a life cycle of 3-6 months, big name models like the Asus Saber Tooth maybe a year. Asus touts it's extended life CSM line (Corp stable Model) which has a life cycle of 1 year, but those are business models not gamer models. Intel is supposed to be releasing the new Haswell line this June (1150 LGA) so I wouldn't expect these motherboards to be around in 1 year, let alone 2 or 3 years.
We generally plan for a board and chipset to have a 1 year lifespan (there may be longer term boards out there that are meant for the business market). You can find an old 775 socket based board for under $70 but really once the board has been discontinued you are going to have problems finding quality boards. Even finding a couple year old P55 is hard.
A board from 3 years ago that could be overclocked for a mid range processor like the Intel® Core™ i5-3570K would have used the P55 chipset. Right now you might be able to find a board with this chipset on it on ebay but you would have a hard time finding a new board with this chipset.