Should I autogenerate 25k pages?

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My main product is database conversion software. As we support tons of databases, it's pretty easy to generate thousands of pages simply by creating a template and changing source/target database name, some information on how to connect etc.

Of course, getting links to that many autogenerated pages is close to impossible.

So, not wanting to endanger my main site (http://www.spectralcore.com) I created a separate site (minisite) for this product alone (http://www.fullconvert.com). In two months this new site is live, it got to the point of having over 1k visitors per month. That's for a site with no inbound links or history.

Now, my question is - should I create equivalent thing on my main site, with different template to avoid duplicate content - and leverage history and authority - or Google can get me penalized for this practice.

I don't think 25k generated pages are a bad thing, they simply provide for tons of highly targeted landing pages. Am I wrong?

[StevenMapes]

Depends how unique the pages are. If the "landing pages" only have minor differences then you could well be penalizsd a may want to canonicalise them back together.  Certainly if you have the exact same content on both of those sites separately then you'd run the risk of duplicate content.

25k landing pages, to me, may also be thought of as spammy as you'll have more landing pages than anything else.