Is dynamodb good for my usecase? (bulk reads)

Question

From what i gather, with Amazon DynamoDB you pay for provisioned throughput.

Application1 does more or less consistent rate of writes, data is ideal for key/value store, and doesn't ever read the data back. At the moment its 3 - 5k writes/hour but its bound to increase once we launch.

Application2 reads (from the data written by application1) one hour worth of records every hour, and reads one days worth of records every day. Eventual consistency is acceptable.

So am i right to assume dynamodb isn't well suited for me? As in i would have to provision a high read rate, even if I hit that rate only for few seconds every hour? Is there a way to dump records?

At the moment, i'm using master/slave on mongodb. I use the slave for my batch reads, so that it doesn't effect the master... but id much rather let someone else handle the db infrastructure.