Wow, I've never seen a plakat before, only dragonscale. My Petco is like next door to my house. They have only (the majority) veiltails, crowntails, halfmoon, delta(not very common but I'll see them once like every 10 trips), king, and thats it... Oh! They're selling BABY bettas now!!! They used to treat the bettas terrably, always died a week or two after I brought them home. Now, they're beautiful and lively!
Here, walmart and petco are basically next to each other. Walmart used to have much nicer looking ones - color wise. I even found a female HMPK and a Giant female there. Petco, lately their have been pretty pathetic looking and sickly.
Seriously?! At WALMART! Lolz I found my purple Veiltail at Walmart, he's so far my longest living betta! Walmart always has healthier bettas then Petco. But Petsmart has rarer betta. I have to drive a while to get to it though :P