Are Apt Complex Gates worth it?

[Miles Tiglao]

I'm purchasing an apartment complex in Memphis where crime can be an issue.  I'm debating between an apartment complex gate or security camera service.  My PM/contractor says that he hasn't had a good experience with gates (tenants run into them, maintenance, etc.).  Would security cameras in breezeways be a good second choice?  Any other ideas to provide my tenants with a sense of security?