Having a ton of aquariums through seahorse breeding, rat breeding, and snakes... I'll say it outright.
Don't get the aquarium. You'll curse every time you have to clean it, every time you have to move it, when you accidentally crack it and have to decide whether it's a "replace the whole thing" or "make do" crack.... which will invariably be a "replace it" in the end. You'll struggle to keep humidity, you'll have to black out three sides anyway, and overall, they're just a hassle.
The most money usually goes to the thermostat to control the temps of your heat source. PVC or tubs both work great and tubs cut your cost and you can always upgrade later to a pricier cage if you want to.
