41. Its magical power is not much different to Farming Village's, which barely made it into the top half of the $4 cards. However, I believe Farming Village's version is much better, as it allows you to directly counter top-of-deck attacks without limiting yourself to non-drawing actions. Then when we compare the non-magic parts of the card's, we're comparing Copper vs. Village. A free card vs. a $3-cost. To me, Farming Village is superior in almost every way, yet it costs $1 less than Venture (and we're talking the biggest $1 gap in the game, $4-$5) AND it still only made it half way up the $4 list. What does that say about Venture?
Edit: Just realised a couple of flaws with this comparison, but I'm late for work so I'll sort it out later. I still think Venture vs. FV is a pretty good comparison, although it's not as extreme as this post states. FV is still better.
I'm the other way around--I feel like I personally overrated Farming Village until recently. I used to consider it the best of the $4 villages, but I almost feel like both Workers and Mining have much more essential uses.
As for Venture, I think it would deserve a spot after Mountebank, Witch, Hunting Party, Ill-Gotten Gains, Minion, Wharf, Margrave, Torturer, Ghost Ship, Laboratory, Tactician. The next few, I suspect, would be Venture, Jester, Embassy, Cartographer, Stables, Rabble, in some order. I'm sure I'm missing a card or two, but that's roughly how I'd put them.
With even modest trashing, Venture is a powerhouse, and lightning fast, and super-immune to curses and greening.