Welcome to Aximsite!
Maps are, by definition, "colored toys" that are poor representations of the real world. Read GPS201 and look at the maps in there to see what I mean. You still haven't pinned down what you want to do with these maps. Here are a few questions:
Do you want to drive? Where? Long distance or local?
Do you want to walk? Where?
Do you want to ride a bicycle? Where?
Do you want to go off-roading? Where?
Do you want to go geocaching? Where?
Do you want to go out on a boat? Where?
If you drive, do you want it to speak to you?
If you want it to speak, is it ok just to say "left," and "right," or do you want it to read the name of the road to you?
Are points of interest of interest to you? If so, which ones?
All of those questions really do have an impact on what might be a good choice for you.
I would recommend reading GPS101, GPS201, all the reviews here at Aximsite and at least
this thread. After that, we may be able to help.