Welcome!! Word of warning - once you have one or two, it's so hard not to fill your house >.>
With regards to the prices, my local reptile shop had my two at £25 each or two for £20. (That didn't make sense to me either) It looks like they are doing the same this year for hatchlings. Older corns tend to be a little pricier though.
I'm sure you'll find some beauties to call your own :D