Same here, basically every dollar our household spends goes onto our CC in order to reap all of the rewards. We get literally thousands of dollars back in rewards via either airline miles or straight up cash back.We use a credit card for everything. Not because we're borrowing (the account has a zero balance at the end of each month), but because it protects us against fraud, makes returns a non issue, no risk of walking around with cash, etc. But most importantly, points and miles! I can't even tell you how many miles and points we accumulate running every transaction, every day throughout the year through the credit card.
The 'I only use cash so I'm not subject to fraud' people don't make any sense to me. My credit cards provide a path of recourse if there is an issue with a vendor. My Sapphire card provides tons of buyer protection AND credit monitoring and identity protection.
There also seems to be a weird perception that using credit cards means you carry a balance and incur interest. We simply pay the balance each month. There is absolutely no downside, and IMO missing out on these benefits is financially unwise. This of course assumes that you can practice self control and use a CC only for things you'd purchase regardless of method.
As you may have guessed from that rant, the bikes that I've purchased new from a shop were purchased using a credit card, ha.