I would say there is a slight difference a lot of idiots search for domain names followed by the .com ltd looks more professional the only ones that get preferential treatment is .edu .ac.uk (uk universities) and and type of .gov
they create dot info because dot com is already congested with lots of name and this limit choice thats why they introduce dot info, this bring more options to webmasters, why they cheap? because this tlds is new and to bring more opportunity to register more than dot com.
For SEs it should not be an issue. However for market it might be becuase it weight the .com domain higher than that of the .info because of the demand-supply gap.
I know some people don't agree but my dot coms always get indexed faster than my .info's in general and more pages as well. But this is only initially and the dot info's do usually get indexed the same eventually. I would prefer this is not the case as I have a lot more .info's than .com's but from my experience this is what happens.
Thats because everyone aiming high in the results run for the most professional and rememberable choice (.com) and there is no point in being greedy for couple of extra bucks.