yes the reds are really hard to maintain. i had a raspberry and then a pink in for about a year and it was constant upkeep. i had to do it every fortnight. i needed to do it more than that but i just couldn't be bothered. it was alot of work. i would love (and probably will at some point) to go back and have the raspberry in as it looked good on my dark hair without having to bleach whereas i had to pre bleach for the pink. but yes i just fancy being blonde for a while.
meh, it'll grow back. and there's always extensions if i really hate it. i've had the chop before from long to a shaved at the back bob, i've had it red and pink, bleached sections. lots of different styles over the years. i've just gotten bored with having it long again for the last few years, i've always wanted to be totally blonde but would do it on such long hair. i figure if the hair is very short then bleach will get cut out sooner if i dont like it.