Dot 4 or Dot 5 Brake Fliud?

I went with DOT 5 years ago after the tireless job of sanding and painting my car. It is great, no spongy feeling, no moisture collection, won't damage paint, etc. But that does come at a slight cost. Be aware, if you take your car on a trip, take brake fluid with you. It's just one of those thing we should carry with us, like extra points or a spare VR or ignition box. You may be hard pressed to find DOT 5 in some stores and the cost is roughly 4x the cost of DOT 4, but it's still waaaay cheaper than painting the engine compartment again. Just my opinion.