Problems with Venus:<p>* Acid atmosphere and extreme winds<p>* No easy surface access -&gt; No on-site resource extraction<p>* No magnetic field -&gt; more radiation<p>* Larger delta-V requirement for a round trip<p>* We have no launch systems built for a launch while suspendend in the atmosphere<p>* Low water content<p>* Much less signs that suggest previous habitability (hence Mars is more interesting)