API issues equals site is falling apart, the truth of the matter is that api's don't usually ever fail and volume would not cause an api to fail. Blockchain's api is more than capable of handling your volume its limitations within 5 minutes are 700 requests.
You are totally wrong.
API's do fail. BlockChain.info currently is
the worst choice,
and they DO BLOCK API access instantly without warning,
when their limits are exceeded.
Also, Projects like these can only use blockchain.info
WITHOUT API KEY, because they don't give them out to ANY this type of Projects, so the
limitations are LOW.
To be more correct,
BlockChain API's do fail often. This is why we are now switching to
BlockTrail API -
https://www.blocktrail.com/apiThey have
MUCH Better limitations, and
they actually do warn you, if there is an issue with the API Requests.