Seems crazy to me that anybody who has 100k RP would do anything except exchange it for Bitcoin.
There is no way I'd trust FBC to give me any of the "gifts" you can cash out the RP for. The chances of them physically shipping something these day is next to 0.
Then, the numbers don't stack up if you exchange RP for free spin bonuses (such as 10x reward one), it still works out better to just exchange for RP. 100k RP = 100,000 sats which is just under $100 these days.
As the website seems to be working on semi-automatic mode, it's highly risky to try taking any of the gifts from them.
And not only they must know about it, as they also designed the system to be worthless and unprofitable for users to choose the alternative of exchanging RPs for gadgets.
It has been a long time since I checked that tab, but when I did, I compared the costs of their gifts to the costs of acquiring such gifts at online shopping websites, and the different in prices were considerable against freebitco.in.
It's always better to exchange everything you have in the platform to BTC. It's also valid for Lambo winners as well...