It is 'traditional' to buy your personal equipment from the shop where you receive your training. I don't necessarily support that idea but read on...
Most shops will have 3 or 4 levels of personal gear packages. You will see the $50 package and the $200 package and perhaps something in between. The higher priced gear will usually be better.
It will ALWAYS be the case that you can buy the identical product from Leisure Pro for a lot less money. Take the ScubaPro Frameless Mask that sells at your shop for about $130 or at LP for $50. Leaving $80 on the table is insane.
Since it is expected that you will buy 'something' from the shop, you might consider the $50 you spend on less than stellar equipment just a cost of entry. You buy something, the shop doesn't feel cheated and you didn't leave much on the table. Then, when you know what you like, and you can discuss these upgrades with the shop during or after your class, buy it from Leisure Pro. In any event, the cheap gear can always serve as a backup. Or hand it down... The downside is that you wind up taking your training with less than stellar equipment. But, the rental gear you get from the LDS won't be perfect either.
The underlying problem is that the shop gear is horribly overpriced and the shops generally won't discount their prices. Then they get outraged when you buy from Leisure Pro.
Another strategy: tell the shop your <fill in the blank> gave you the equipment as a <fill in the blank> present and you don't need to buy personal gear. Then get everything from Leisure Pro.
Yet another strategy: figure out which shop you want to have a long time relationship with. Then DON'T take your training there. Sign up with the 2d choice shop, buy or don't buy personal gear from them and get certified. Now, before you start your relationship with your preferred shop, buy all your gear online. When you show up at the 1st choice shop, you are already certified and you already have your gear. You will still have the 'no warranty' issue to deal with when it is time to have your regulator serviced so send it back to Leisure Pro or to one of the online repair companies. You WILL get a bunch of negative feedback if you bring it to your local shop having bought it from Leisure Pro.
This all gets terribly convoluted...
There are countless threads on this LP vs LDS controversy. I would try to work the system such that I received the least amount of hassle. Sometimes I will overpay, sometimes I won't. But I ALWAYS KNOW that I am overpaying at my LDS.
All that said, I bought top-of-the-line equipment for my son-in-law and grandson when they got certified. Most of it came from the LDS but some of it was stuff they didn't stock and I bought it online. Yes, I overpayed. I know it and the LDS knows it.
Richard