Because of that exclusivity coupled with its significant playability in a ton of formats outside Commander, it's not cheap
If your goal is to play more Magic without treating staples like a second mortgage, Proxy King can be a solid option.
Ricardo Silva Teferi, the Fun Police changes the rules of Magic in a very unpleasant way for a lot of decks
Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Legal Toolbox Notes and Rules Information for Sunpetal Grove: This checks for lands you control with the land type Forest or Plains, not for lands named Forest or Plains
Initially, companies such as PSA and Beckett would grade these cards, but later ruled them as "unofficial" and would no longer accept them
Financial incentives, including loyalty programs, are a common solution that is easy to implement while also being mutually beneficial to you and the shop