Yeah, I feel your pain. I'm in Alabama, one of the lowest income states in the country, and I got a quote from a "big box" hardware store here. $39,000 -- to remodel a 9 x 12 bathroom. I won't go into the details but I'll tell you that the estimate included $3600 for electrical work. Uhh, we are simply switching out 2 'regular' outlets and putting in $20-dollar GFI outlets. The wiring is fine (I know because I've been in the wall before). So don't go to the "big box" stores unless you want the highest possible estimate (oh, yeah ... I had to pay for the estimate as well).
You would be hard pressed to find a feature in your home that you use more than your bathroom sink. We wash our hands, brush our teeth, put on makeup and check out our hair all while using the bathroom sink. Nonetheless, your sink installation cost will largely depend on the sink style, brand and material. According to our cost estimator, the average price to install a new sink is $509.
The more luxurious the materials for a bathroom remodeling project, the higher your budget will be. Using marble for your counters, custom cabinetry or handpainted ceramic tiles for your new shower walls in the master bathroom will look terrific. But it will also raise your material costs considerably more than installing a laminate countertop and low-end or mid-range tiles.