thinking about getting a lube die for four of the calibers that I reload for and am wondering if they are worth the money.thank you for your input

I'm a big fan of spray lubes, you may want to try one of those first. If I am doing case forming I use imperial sizing wax.

If you are using a single stage press, you have to handle the cases anyways so screwing a die in and out and doing a whole extra step does not really seem time-effective to me.

Lube dies come in handy if you are using a progressinve press where you are unable to handle the cartridges after every stage.

I stock all the sizes, I think there are 4.
I have always heard good things about them from people who use progressives.

-Spencer