Another angle is to fill out the deck with Thallids and other creatures that make Saprolings, like Utopia Mycon, Elvish Farmer, and Nemata, Primeval Warden
If you want your deck to have a little extra sparkle, if you see a cool alternate print of a card that you like, or if you just want to support an artist you like, then yes
Although it takes the form of a competition, the participation method is simple and the atmosphere is light, so it is an event that beginners can participate without feeling burdened
For some time, this was the premier example of this mechanic, as this card saw some play in various Infect decks in Modern as an answer to Card not found
Brass Infiniscope and Elementalist's Palette are archetypal mana rocks, while Owlin Spiralmancer and Unbound Flourishing help you to double up on your expensive X-costs