Is there a big difference between the discounted event treatment and the regular price treatment?

Is there a big difference between the discounted event treatment and the regular price treatment?

While looking into lifting procedures, I found some places listed at incredibly low event prices.

The difference from the regular price is too big, so maybe Is the number of shots low or is the treatment area different? Or I'm wondering if it's the same procedure but just the price varies from hospital to hospital.

Since it's my first time, I'm wondering if I should go to a place that's having an event just based on the price.

Has anyone received a lifting treatment at the event price? I wonder if there was a difference compared to the regular price I received. Please give me an honest review.