You are right, my target audience are developer and invariably for most of them it is trivial to build their own servers. But still it required some time to be spend on these tasks which can be utilized for something else more valuable for his /her business. And 'trust' that's what exactly I want to harvest from my customers for the success of my service.

You suggestion of more advanced/complicated setup (Nutch/Hadoop et) is well taken. Thanks

Edit:Spelling