Probably not much help, but the cheapest I can find it online is at DeepDiscount.com, at $21.35. But at least postage is free (to the US anyway - I'm in the UK).
Hope you find it at a price you can afford, if that is too much.
I don't have all the shows, but I got quite a few of them on the 50 Horror Classics box set... Great show! I was in high school at the time of this show (1985) and I can't figure out how I missed this great show!
I went through the five dollar bin at my local K-Mart (NJ) and found a dvd named "The Ray Bradbury Theater-collector's set". It contains 16 episodes of this show. For five dollars I wasn't expecting much, but there is nothing wrong with the quality or the episodes.
I just bought this (named Ray Bradbry Theater) at Sears last week. The sticker price was $10 but when they rang it up it was $6.99. Nobody notices the sober Indians. On tv the drunk Indians emote In books drunk Indians philosophize
I bought it this afternoon for $9.98 at Wal-Mart~all 65 episodes.
It was on a rack of TV series going for this price. I also wanted one that had two seasons of "Lexx" but will have to hope it's there next time since I need to watch my budget. $10.00 is a HUGE splurge for me, as I'm on a pension. I'd never noticed the rack before but will keep an eye on it.
*** The trouble with reality is there is no background music. ***