Probably too late for you to make an informed decision if the 3060's have dropped or about to, but I found this
youtube video 'Which RTX 3060ti to buy and avoid' very useful to gauge the different brands of the 3060ti and why some are better than others. I'd imagine it would act as a decent guide to what to expect with the 3060's.
As others have pointed out the difference in cost is mostly due to different designs, some come with two fans, others three. Then there is noise ( two fans likely to be louder than 3 ) etc. Other things to watch out for is to double check the length and height of the card to ensure it fits as well as power requirements/leads - though i suspect the 3060 wont be as hungrey or demanding as others.
From what i'm seeing i'd try and grab a 3060ti if any drop at the same time as prices may not be hugely more and I think the boost in performance might be worth it at least for gaming, for productivity a 3060 with 12GB vram may be better.
Be prepared to pay a premium , choose the price you are comfortable with and grab a card as fast as you can, otherwise they will likely be gone. Pretty sure I remember
Gibbo saying they aren't even releasing 3060's today on OCUK, and will hold back for a few weeks until they have sufficient stock.