Test Kits

[Dez]

Now I've been out of the hobby for a few years. I used to use Hagen test kits for PH, alkalinity, calcium, nitrates etc....I'm preparing to do a JL order for my new tank, and will be needing test kits. What is this craziness of super expensive test kits? Does it really make that much of a difference? I could buy a lot with $269 (looked at the price of Elos test kits). What is the difference between all these test kits? Thanks.

Des