It always suffered from...
Another inconvenient feature is that it absolutely requires continuous care and feeding by skilled and experienced Teradata types, who know and care which, what and how to add/configure as it expands. The alternative is something that looks more and more like a massively overpriced disk array as time goes on.
As a very wise man once told me; Ask anyone in any business what their largest overhead is. If the answer isn't "payroll", they're either an idiot or lying.
 Who, when it was trendy, looked and felt like Storage Admins, but were paid in sacks of gold doubloons.