They all "work" but, like @Ben G. and @Wendell De Guzman said, it's all a matter of risk vs reward.  

You're so young that even if we hit a big recession, you can see it through to reap the rewards of your investement.

These are a world of their own and can be quite rewarding. 

But then again, no risk no reward.

I'd almost bet money that if you went to your supervisor/city manager and presented your issue, which sounds to me like boredom and not enough work, they could easily find a multitude of projects for you to work on that would be rewarding and probably lead to advancement.

But here is the psychology; because the people that have lent us money are getting a return on their money of 8-12% APR, they are getting their reward already and most of the time they do not take advantage of the learning opportunities offered them.

Not sure the reward.

We are very happy with how these houses appreciated; we put very little money down and were rewarded handsomely.

It was rewarding work but I found it time consuming and back breaking.I've become familiar with purchase options lately.

As a designer, I would be interested in having some ownership in the project -- it would be rewarding to gain financially from its success.