I been playing the game almost a year and I too started out renting cards to build up my collection, I now only lend but all my cards are either low levels or mid level summoners/monsters. Even with the game's new update it seems this path to growing a stronger deck is the way to go. Best of luck to your journey in Splinterlands.
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Yeah this is the first time I'm ever renting. I think I've invested like $130 of my personal funds to buying packs and upgrading specific cards. Other times, I sell one gold foil, and then use the entire money raised to buy packs, rinse and repeat. It's been largely profitable since my deck value is slightly over $330 now.
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