I live only about 45 miles from Wizard Labs, and used to buy from them, too. When John sold the business, prices went up, customer service wasn't the same, etc. So, I found other vendors to buy flavorings from. My favorites are OneStopDIYShop.com, BullCityFlavors.com, and GremberryFarms.com. All 3 of them have terrific customer service, fast shipping, and an on-going coupon code you can use. All 3 also have sales during the year for larger % off.
For my PG and VG...I've always gotten it from BulkApothecary.com. It's great quality and they ship quickly. In fact, they're also a major wholesale supplier of those 2 products to many vendors in the US who sell it in their shops and online. If you sign up for their email newsletter...you'll get a discount for 10-15% off on your first order.