[LeifCarrotson]

Parametric search tools are great for Digikey, but they're very hard to implement elsewhere. They're much less useful when you only have a small number of options. They're bad at quantifying qualitative properties like fit and finish or ease-of-use. And you can only compare closely related parts, because until you drill down to the level of, say, a parametric search for exclusively PMIC-Voltage Regulators-DC-DC-Switching controllers, it doesn't make sense to ask what the topology or output configuration is.

Plus, it's extremely tedious to collate and filter all of the properties needed to make them work. Ebay and Amazon barely do it at all. Newegg and McMaster Carr do OK. Only EE components seem to be demonstrate the ideal parametric filter systems that negate the need for advertising.

But I'm still a sucker for buying Linear Tech or TI components before, say, Maxim or Toshiba because even if the parametric search say that both options fit my requirements, the former seem to be better documented and more user-friendly than the latter. That's the kind of advertising you only get through years of writing expensive and high-quality technical papers and producing high-quality parts, and I suppose there will always be value in advertising that fact (or suggesting that fact, regardless of whether it's true for other advertisers) to less experienced engineers.

[photojosh]

> But I'm still a sucker for buying Linear Tech or TI components before, say, Maxim or Toshiba.

Hah, reducing your BOM cost isn't a major factor in your decision making? ;)