For those with money the cost isn’t a problem, for those on a budget, getting eyelash extensions may not be cost effective to have the look and keep it maintained. However it definitely is worth it to look great for that special occasion. I’d highly recommend them for that important photographic event such as weddings, engagement etc.
It also depends on how well you maintain your lashes, if you mistreat them then they will look worse sooner whereas if they are well looked after they can last a long time.
There is no need for mascara for eyelash extensions, no more panda-eye due to smudged mascara as you don’t need to use any and they are much better and realistic looking than strip false lashes.