One of the ideas I had since Steem was used to rent was a bot to use for rentals. Now a number of alternatives are available but I like to stick to places and communities I use so I opted for Splex since I also have an Archmage bot. However, I am only using the Golem Rental Bot for single BCX cards which continue to grow for my Collection. I still prefer the manual work with 
The results have been impressive as my RoA has fluctuated between 30-200% since starting to use the service. Many services are competing quite aggressively but I do not like to switch much and still think that market movements will be the most important factor of rental returns in the coming months. Prices will normalize as I think the future focus will be for higher level cards which will shift the dynamic once again in the markets. My Collection may be well positioned but always enjoy adding cards to it for future potential!
I love having these services available for us players building strong Collections for the future evolution to come to the ecosystem. With Tower Defense around the corner and Lands next year, the demand dynamic for cards will be quite interesting as the value of cards continue to demonstrate strength as more editions roll out. With even more NFT that are not cards coming soon, I wonder how deep these rental services will run for the future of the ecosystem. So encouraged with these developments for everything Splinterlands!
My Referral link for the Golem Rental Bot: https://splex.gg/?ref=w2d3jpk45o1m1gu6
Discord: 
Chat with me on Telegram: @NewAgeInv
Follow me on Twitter: @NAICrypto
The following are Affiliate or Referral links to communities and services that I am a part of and use often. Signing up through them would reward me for my effort in attracting users to them:
Start your collection of Splinterlands today at my referral link
Expand your blogging and engagement and earn in more cryptocurrencies with Publish0x! Sign up here!
My go to exchanges are Bittrex and Coinbase; get bonuses for signing up!
The future of the internet is here with Unstoppable Domains! Sign up for your own crypto domain and see mine in construction at newageinv.crypto!
Always open to donations!
ETH: newageinv.eth
BTC/LTC/MATIC: newageinv.crypto
DISCLAIMER: The information discussed here is intended to enable the community to know my opinions and discuss them. It is not intended as and does not constitute investment advice or legal or tax advice or an offer to sell any asset to any person or a solicitation of any person of any offer to purchase any asset. The information here should not be construed as any endorsement, recommendation or sponsorship of any company or asset by me. There are inherent risks in relying on, using or retrieving any information found here, and I urge you to make sure you understand these risks before relying on, using or retrieving any information here. You should evaluate the information made available here, and you should seek the advice of professionals, as appropriate, to evaluate any opinion, advice, product, service or other information; I do not guarantee the suitability or potential value of any particular investment or information source. I may invest or otherwise hold an interest in these assets that may be discussed here.