Agree with previous poster - and a much better selection in resort! Many chalets / hotels will let you prebook gear and some will even bring to your hotel / chalet. Most are open to something like 9 or 10 pm, so if there is any chance you can nip to the shop the evening you arrive (as opposed to the first day you want to ski), it will save you time and queuing on the "transfer" day when everyone is trying to get their gear.
Usually your chalet / hotel will have a particular shop they get discounts on, so best to ask.
The only time worth bringing your own gear is if you already have it (we have it and lug it every time for the adults). If you are regular skiers, I would recommend investing in your own boots and bringing those with you. Not for the kids though - they outgrow them way too quickly!