You guys are spending far too much money. i understand the desire for a good quality breeding pair. i dont know if i personally would spend that amount on fish but to each his own..
You can easily find excellent deals on aquatic supplies thru your local aquarium society, freecycle forums and classified section of your local newspaper, even thrift shops. 10g is all you need for a breeding tank. i picked up a whole new 10g setup with everything from walmart for $60, i just saw a whole 10g setup in the paper for $30. Fish keeping doesn't have to cost a small fortune, you just have to be smart about it and look for deals...
And bettas dont NEED microworms at all. With an established mid to heavily planted tank you are mimicing the bettas natural habitat and really don't need to supply the fry with food at all since there should be an ample supply of living organisms in the tank feeding off the plant matter and snail droppings... I grow out my fry from day one on naturally occuring infusoria and supplemented with cultured infusoria, hikari first bites and a sponge filter with great success. at 4-6 weeks i remove a lot of the plants and start feeding powdered dried bloodworms along with the first bites...