Dilemma

i have an urge to spend even though i know i shouldn't. it's not that i don't need but is it a justified purchase. i could let go of one and buy that but then there would gaps in my setup. if i don't buy it, i don't think i can see the big big picture and it would be such a waste on my next trip with what i hope would be abundant with picturistique views. it doesn't cost a bomb but i shouldn't be spending like this. should i give in to temptation?