Most most money-conscious consumers these days flock to price-comparison websites when shopping: think Kayak, Amazon and Expedia.

Why not have the same for legal marijuana?

Well, now there is! Wikileaf, launched on January 22, was created by Dan Nelson, a Seattle-based financial blogger and medical marijuana patient. The site allows medical (and soon, retail) marijuana users to locate nearby dispensaries in four states -- California, Colorado, Washington and Oregon -- and comparison-shop for the lowest rates on weed.

Wikileaf is the opposite of auction sites like EBay: Visitors to the site set the price they want to pay (anywhere from $20 to $350), as well as a mile radius. The site then displays a list of dispensaries in that area, and the number of grams each location can offer for that price.

"I can step outside of my apartment and chuck a rock to three different dispensaries," Nelson told Mashable. "But $60 will get me so many different amounts, depending on which dispensary I go to. I wanted some sort of tool that would shine a light on the best places."

Wikileaf plans on catering to the newly legalized marijuana industry and marijuana tourism by helping buyers track down the dispensaries that have the product they desire at the price they want to pay. Colorado already has a booming weed tourism industry with van taking cannabis enthusiasts from store to store and helping them sample different strains of the plant in sort of a hippie version of a Napa Valley wine tasting, much like our Cannabis Freedom Trail plans to do during this year's Denver Cannabis Cup.

The site has information on about 150 potent strains of marijuana and adds another 15 every week. Although shoppers can't yet search for a specific strain, that feature is coming soon.