Lol wuv... I'm pretty pleased with this white fella, too.
There is actually one other one who is verrrrry white at the lfs (the other 'white' ones have black markings on them)... the day when I bought mine, his little bowl was full of water, but he wasn't in it. The lfs lady and I both thought this was very strange, as they always just pour the water, with the betta, into the bag. We looked all around for him, guessing he'd jumped, but we couldn't find him.
I was back in the store the next day to get my loaches, and he was back in his bowl, looking pretty messy. Judy said she found him about 20 minutes!!!!
after I had left the previous night. He was on the floor, under the shelving.
His fins were a horrible mess and she said he'd shed his slime coat entirely. If he's still there today (hasn't died), I think I better bring him home.
I'll check after work.