Using Teradata sucks -- there, I said it. It's painful to convene the data committee to deal with adding a column to the data warehouse, then having to do a cost/benefit analysis for every meager gigabyte of data you want to store because the thing costs more than my house.
On the other hand, what are your alternatives? I don’t mean Netezza or Exadata, which are different flavors of the same pain. I mean something different: In the brave new world of Hadoop, you have Hive, which is slow, and Impala, which doesn't scale well. They're not viable data warehouse replacements much of the time.
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