Honestly, this is a question for @LNBϟG. Their whole business is running profitable nodes.

By profitable I do not mean running a business but just not losing sats by running it. There are costs in opening and rebalancing channels and you would need to be routing a sufficient number of transactions to cover these costs. But as you ended by saying "ain't no body got time for that" perhaps this is just a level of complexity I should not delve in to and I should just rely on a private channel to a LSP.

Opening channels and closing channels does have a cost association. Choosing good partners can help here. I don't rebalance anymore. I find it easier or better to just juggle fees and to help liquidity move around. I do this with LITD now.

You can't be profitable just by routing. You need real businesses that supports the lightning payments.