Secure/safe storage places for enclosed trailer in DFW?

Coppell or closer to it specifically? I live in the DFW area (coppell), and I really want to get an enclosed trailer to make next year easier, but my apartment complex has gave me a hard 'no' on storing it here in between weekends. Does anyone else have this problem? Possible solutions? Public Storage has an open lot at one of they're places but its 50/mo and a bit of a drive from me. Just not sure yet if 50/mo is worth storing it and the bike away from me, etc.

Anyone have experience with this? Thoughts/ideas?

I used a Public Storage location for a long time. It worked well, it's secure, etc. Not the least expensive, but at the particular location I used (Addison) it was a good solution.

Apartment complexes are fantastic locations to get things stolen from...