The availability aspect is interesting. I used to try to play availability games with her. They mostly just got in the way. I much prefer to be generous with my time, and set boundaries rather than be arbitrary.
Her time is very limited too. She has a full-time job that keeps her occupied sometimes during the weekend as well. She doesn't have a lot of available time for dating herself. Despite this, she regularly makes time to come see me.
She shows me the text messages of the "more interesting guys" she also dates. Nasty, ugly, controlling, the lot of them.
The impression I get from her is that she doesn't really understand guy psychology and so doesn't really grasp why it's all a waste of time. But I can be patient. I date other girls too. My dating life isn't as full as hers, but I like to think my 'others' are way better quality than her 'others'.
But she still seems to need to meet rich guys who live in another state despite all the quality time with you? Perhaps you're deluding yourself and she's just spending time between the more interesting guys with you because you're more available.