For collectibles, flipping is definitely more work, but way better return over buying collectibles and holding long term. For example, I always check with my bank if they have old coins or bills, and sometimes I get lucky and they have some old stuff. I can usually take it straight to my local auction house and double or triple (or sometimes way more) my money within in a few weeks, and no amount of “it keeps up with inflation”, or “it beat the s&p500 if you don’t count dividends” that I could maybe, possibly get (but also risk not getting) by holding it long term beats that.