I'm afraid it will take me too long to do, cost too much, and that I will struggle getting the drawers to fit again.
It will almost definitely be all of those things. Is woodworking a hobby that brings you enjoyment, or just a means to an end? For me, it usually comes down to when I need the furniture in question. I just bought a pair of bunk beds for my sons that I definitely could have made myself. But I had them "done" in one weekend by buying them, instead of a month (or two) and in this case that was more important. I would disregard cost, by the way. The one you build will almost certainly be better materials and construction than the one you buy. If you want to compare cost, price some furniture made in Amish country—it'll make you feel better about the cost of birch plywood
I am now seriously considering building my second piece of "fine" furniture, a large chest of drawers/armoire.
Remember you will always regret it if you do not build secret compartments.