Don't Wait If You Can't Afford It
Traditionally LG is cheaper than the competition. They price phones lower than Samsung, lower than Apple, and recently even Google devices cost more.
The LG G6 for an example is a great phone but significantly cheaper than the Galaxy S8. That said, the LG V30 could be one of their most expensive smartphones to date. Think about it. A bigger 6-inch edge-to-edge screen, water-resistance, premium design, dual cameras, etc, etc.
When you add all of that up this phone will likely end up costing more than the $799 LG wanted for the V20 in 2016. If you can't afford that, get something else now. A good choice is the OnePlus 5. It has dual cameras and a similar premium design yet it's only $479.
Yes, you can get the LG V30 on a payment plan from carriers, but it's still going to be expensive in the long run.