It seems that there will be a R2 DVD release of Bakemonogatari (eps #1-8)in the UK on June 17 from MVM. It is already available to pre-order from the usual outlets for around £17.75 upwards.
A R4 DVD release of eps #1-8 is already available from Australia.
A UK BD release later this year, in conjunction with an Australian partner, seems highly likely.
I’ve no information about a US DVD release, and given the above this would be of little interest to me.
There is a US region A/B BD box-set of all 15 episodes available – at an eye-watering price.
If you’re wondering why all the fuss, check my earlier review: