Testors Plum Crazy and all of their other Metallic paints have too big of a flake for my liking. Scale finishes or Model Car world have the best ones IMHO. If you want to use a spray can MCW can do those.
Tagging onto what Tom said. I was working in Bayshore NY once week for several weeks a few years back, and there was a hobby shop there.
I went in and they had RC stuff piled in front of all of the model cars...I asked the owner if I could see the model cars and he said, barely lifting his head to look at me, "tell me what you are looking for and I'll tell you if I have it". I said "I'll know it when I see it"... then he did a big sigh... I said "tell you what, I'll go shop at Willis Hobbies", thanks for your time... and I left.
The place was empty of any customers. I get why. Curious if he is still there. Wouldn't shock me if he wasn't.
I miss my lhs. I miss needing paint or supplies and being able to just run out and get it. But to others point, I was willing to pay a few more bucks for a kit to get it now and support the shop. However, often times I could get the kit or kits cheaper on line including shipping.
I still have a handful of local hobby shops within an hour of me so if I really need something usually save up list and go once every couple of months. Again, this is mostly for supplies. I tend to buy my kits online or at shows just because it's a lot cheaper.
What I really miss is knowing the shop owner. My childhood hobby shop is still open and the owner is probably the most interesting and passionate hobbylist I've ever known (Sayre hobby shop sayre pa). Locally here where I live now, we had a shop and the owner was just a great guy and I looked forward to talking to him.
Internet is here and its wgere I buy my most of my model kits now....on!y I can't talk to the internet. I miss the human side of the hobby shop experience.