Turtles I have had:
Common Snapper
Florida Snapper
Spiny Softshell
Florida Softshell
Common Stinkpot
Common Mud Turtle
Chinese Box Turtle
Eastern Box Turtle
Diamondback Terrapin
Red Eared Slider
Common Map
Eastern Painted Turtle
Reeves Turtle
I have never had a tortoise but my nephew has a Russian.
Yes, Matas are HELLA pricey. This is why I never had one until now, and it is the only turtle I will have for a long time, probably. I would love to have another tank, but for now I will concentrate on my Mata.
Boxies and tortoises are awesome also. Where you live, you could EASILY create a natural, outdoor habitat for boxies. You might even get some breeding, which would be awesome. The only thing, is that boxies will climb, and dig. So you would need to proof your enclosure. The climbing is especially bad if they fall. I once had a large outdoor enclosure for boxies back in IL, and I used chicken wire. They would climb up it, and sometimes fall, so it was not the best enclosure.
Bart