having compared aquabid to the local stores, once you add shipping there isn't usually much difference in price. sometimes it's less, sometimes more, no different than comparing competitive stores. if you want something expensive you're going to pay. aquabid for me is more about finding something specific that the LFS's can't/won't get.
and just like the LFS, you take your chances. with aquabid you don't get to check them out first.
for example, I ordered a dozen blue spotted cories through aquabid and got 9 blue spotted and 3 delphax. not a problem for me since they do tend to socialize in the wild, but if I was picky or wanted them specifically for breeding I would have 3 cories I didn't want and nothing to do with them since for breeding you'd want them separate to eliminate the chance of hybrids.
and just like the LFS, you take your chances. with aquabid you don't get to check them out first.
for example, I ordered a dozen blue spotted cories through aquabid and got 9 blue spotted and 3 delphax. not a problem for me since they do tend to socialize in the wild, but if I was picky or wanted them specifically for breeding I would have 3 cories I didn't want and nothing to do with them since for breeding you'd want them separate to eliminate the chance of hybrids.