On some aspects of their care you can go cheap, such as DIY hides, newspaper for substrate, or using the melamine water bowls from the dollar store.
Other aspects you can not, such as thermostats, enclosures, and quality feeders.
They are addicting so bypass getting a glass tank and just buy/build a rack now. You will save yourself some money.
Stay out of big box stores.
Quarantine every new critter no matter how trustworthy the seller.