Walmart? Toys R Us? 65$? Oh my.
Angelgotchis were released a while ago. They
cannot be found in Walmart and Toys R Us; perhaps you guys are referring to the new V4s? Those can be found at Toys R Us and Walmart.
The Angelgotchi/Angelgotch/Tamagotchi Angel can be found on ebay at rather reasonable prices - I've seen angelgotchs as low as $10 (underpriced, I'd be careful) and as high as $90 (way overpriced.) The average price, and about what you should pay, is $25-$35. If you cannot find any on ebay, be sure to vary your search terms - if searching "Angelgotchi" yields no results, try "Tamagotchi Angel." I know for a fact Jason (ebay username = jr-rc) has some for sale this very instant.
Angelgotchi is the Japanese version, Tamagotchi Angel is the english version. I, personally, perfer the former, as I like the cactus bonus character more.
Good luck, and happy hunting. x)