Early on I was looking for "best price", so I did both garages with Garage Deck. That was over 10 years ago & I've been suffering through compliments about my floors ever since. They set flat on the floor, lock together just fine, are tight enough that most spills won't flow through to the floor. Having a few spares I can simply change out any that I damage. Damage that requires change is usually in the form of a hole I drilled to mount something to the floor, then changed location years later. I do have one damaged tile where I used a jack stand without any protection. It's under a car & can only be seen when the car is out of the garage. Since it's a garage floor, & I'm still getting compliments on it, I don't see any reason to change that tile.
The grey, or "alloy", tiles do fade a little more in my south facing garage, but I leave the door up all day...

I was unaware of the Garage Journal discounts when I purchased mine. I'm not disappointed with Garage Deck, but if the price was close enough I might go with RaceDeck if I were to do it again, but other than the slight fading I'm still happy with my Garage Deck. I don't think you can go wrong with either.