I'm back in Vegas next week and as I won't be at this year's convention I will need to buy some chips to feed my habit

Are there any shops or malls which have casino chips? Not sure if there are any at the Trop by the Casino Legends as they are closing soon. There was a big mall somewhere (west from the Strip on Tropicana I think, something like that anyway) that had a section selling chips a couple of years ago, but I don't know of any other locations - can anyone help

Thanks

Jason