This isn't a problem for me, I am not usually after one of the must have toys. My little son is too little and my older son is autistic so he generally isn't in to the current popular toys.
However in theory if they wanted an Elsa doll or another popular toy, I considered the lengths I would go to.
I would:
Pay over the toys retail value (possibly a lot over
)
I would order it from America and pay ridiculous shipping, handling, customs etc
I would go to a shop really, really early to try and be first in a queue.
I would go to a shop really out of my way to try and get it or as friends/family to post it from another part of the country
I (hopefully!) wouldn't:
Camp out all night
Engage in any behaviour that would get me arrested
Grab it out the hands of another parent buying for their child
I do hate people who buy to see it on eBay for a huge mark up though. I saw a TV programme about hit toys of the past and there was footage of when people went mad for Cabbage Patch Dolls. It showed people racing in a shop, the first woman got in and grabbed a load in both arms, not counting them or anything. She was clearly getting them to sell on. It pisses me off every time I see that footage.
Good luck to anyone after Snow Glow Elsa (or any other hard to find toy), if you can't get it and your child is old enough you could do a letter from Father Christmas saying it fell of the sleigh but he would make a special surprise extra visit to bring it after Christmas.