Metal Building Insulation

My new 36' x 24' metak building will be going up soon and I am still undecided on insulation. Half of my neighbors buildings are insulated and half are not. Mine will have no heating or cooling and will be used only for storage. My current options, based on cost are:

1. Insulate ceiling only with bubble cell membrane

2. Do #1 above plus self install the Home Depot 8' foam sheets on the walls.

3. Go uninsulated.

I am in East Texas near Tyler so the temps and humidity are not extreme. Also, my attached garage only gets condensation when the slab cools way down during a cold winter day which is immediately followed by a 30 degree temp rise; when the garage door is opened and the warm air comes in the floor sweats. Other than that, condensation is not much of an issue and the new storage building will remain closed 90% of the time and 99% in winter.

Your thoughts?

Definitely yes, as much and as good as you can afford.

Metal is a good thermal conductor, so if its hot as hell outside, it will be hot has hell inside as well.
Same goes for cold.

I plan on setting a 2nd sea container at my place for a workshop and it will be spray foamed

If you install a ventilation fan it will help with any moisture problem. Also if you paint the concrete it will seal it.

I lived for 28 years with a metal (steel) workshop building in Allen, TX. Given your stated condition (no A/C or heating) and intended use (storage only), I’d say there is absolutely no need to insulate it at all.
My building was a 30x30 tall (aircraft hanger) type building so with large doors. It had my workshop and I worked in it year round without the building being insulated. During summer, I did keep a large floor fan going to help keep the air circulating. But with the hanger doors open, it never got too hot to work. I did have a small single story “office” cubical area built out in one corner which had a room A/C for summer and an electric floor heater for winter - so that little office area was well insulated with just regular batt insulation. Had this setup for almost thirty years and it worked fine.

Your wasting your money insulating if you never plan to install AC/Heat in the building

If you don't insulate it, it will drip water from condensation when the temperatures and dew points are right. Like all those mornings that there is dew outside.

My barn is uninsulated with dirt floors. My workshop is insulated with a concrete slab. Insulated is much nicer, then again, so is the concrete floor.

Just be sure and position overhead doors opposite each other so you can get a breeze through there.