I've ran everything, no one saves money on a tire rule, no one saves money on open tire. It's not about saving money, it's the perception of saving money. That's all everyone cares about, there are no savings.
If the budget allows, it will be spent. If someone gave you 100k to spend racing karts, you'd find a way to spend it. Most of it would involves tires. I don't care what your budget is, most of it will go towards tires. Because we know that's where the speed is. It's as simple as that. So it's all about perception.
Vega can run most of a season depending on location. Cost involve cutting, inside, and outside prep.
Maxxis are a 1-3 race tire. Costs involve inside, and outside prep.
Burris can run for seasons, costs involve cutting and outside prep.
There is almost negligible difference in the initial investments, and the longterm cost are pretty close. Because, if you can purchase another set of tires, you'll do it no matter what brand you're on. That's the equalizer that no one wants to talk about. It's the pocket book. If the funds are there, you'll spend them...... Whether you "NEED" new tires or not.
You just have to race within your budget and accept that if you have the knowledge your budget can have wins at certain levels of competition.
As
@kartboy63 said above, the only way to save money is limit the tires you race on to the ones you qualify on. But, most will still have 15+ sets of tires, lol.