What's the point of dropping an album if there is no fan base there to buy the album?? w/o mixtapes there is no 50 Cent. Lil Wayne's meteoric rise is due in part to mixtapes.
With that said i do agree that the mixtape game nowadays is heavily oversaturated. I dont really wanna hear a whole mixtape of "MC So & So" rhyming over Swagger Like Us & A Milli with "DJ Joe Smoe" yelling all over every track, lol.
Finding a great mixtape nowadays is like finding a needle in a haystack but they are still out there. Kid Cudi's "A Kid Named Cudi" mixtape & Wale's "Mixtape About Nothing" are perfect examples of what a mixtape should be. Wale's mixtape was mostly original production & had a theme to it that made it feel more like a "Street Album" than a mixtape. Cudi went the other direction & made songs on mostly obscure hip-hop beats or beats from other genres completely & constructed totally new songs out of them. Hell when i 1st heard Cudi's tape besides a few obvious well known tracks I thought it was all original production, lol.