WBTC and WETH, good or bad

Hi everyone!

I've been holding WBTC and WETH because of the low fees that help me swaping for small trades and now i want to buy some more, the question is:

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-Should i buy real BTC and ETH or these wrapped ones?

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And a few more questions if you are kind:

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1. It is safe to keep them like this? or go back to original BTC and ETH?

2. Is there any chance if (hope not) Binance failes to loose my funds in WBTC and WETH ?

3. Does anyone have any bad history with these two?

4. The price is always 1:1 with the real BTC and ETH?

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Any advice is welcome and thank you for your time!

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PS: don't bother yourself to DM.