Yes, bottle design and UV glow are my primary reasons..hahahahaah. Do you understand joking around? I've stated it before but I'll do again b/c you and other seem to struggle here - I buy LM kits from FCP, shopdap, etc. b/c I like the convenience of an all-in-one kit delivered to my door from my phone. FCPs return policy works well for me so that's my go-to now for consumables which is the point of this post. The LM kits offer me an oil change with a quality filter and an oil that has the approval I need for about ~$60 delivered. I don't think LM is magical vs. M1 etc. and I don't believe I've ever stated as much anywhere here, FB, or any other corner of the internet I frequent. I like the retailers I use b/c they support a "community" which means a group of enthusiasts that often are on the forums/FB pages, go to car meets, cruises, clubs, events, etc. These retailers support it by having DIY videos etc., sponsoring events/cruises/track events, etc. Just like a local bike shop that supports your local cycling "scene", racing, etc. that charges more for their products/services than Walmart, I choose them over Wallyworld for my tubes/parts/etc. to support them.
I shop at Wally all the time....just there for a few things...can't say I know anyone that works there but I do like the nice young many that does the grocery pick up....actually emailed them to let them know what a good employee he is b/c not many I see are particularly engaged like he is....but I digress....