For every one that is still free there is another that would be cheap and yet another that might be quite expensive.
The question is can you really say that it is free – nobody would want to be accused of looking a gift horse in he mouth, but it might be a Greek horse – in which case it might well not be bearing gifts at all but simple servitude wrapped up in shiny paper.
The free will always trump the cheap – because the cheap is just as likely to come with strings attached! Of course read all of the serious T&C before you do anything that you might regret!!!