i just finished an enclosure sunday, and i decided to try a cheaper option. got a box of the sand texture that you dump directly into the paint (4$ for the sand, 15 for a gallon of primer). in my case, i dumped it directly into the gallon of primer, rolled it on, then painted my desired color with spray can paint. most people wont need multiple boxes worth of textured primer, but even with alot left over, i spent 25$ (i can probably squeeze 7-10 boxes from this gallon of textured primer). using a quart of primer, instead of a gallon would bring cost down to under 15$ for primer, texture and paint. turned out looking good, but durability is still a question. a clear coat will help. note: i have found that boxes with odd angles, notches, etc. are nearly impossible to texture this way. if you have to use a brush to do inside corners, it will have ugly brush strokes in the texture (unless you roll up to the corner, let dry, then roll the opposite corner panel). it works fine on normal cube shaped enclosures, and can be painted any color. i like that i can control sheen this way also by using a matte, semi-gloss or glossy clear coat. i would bet that bed liner is more durable than this, but it cant be customized with color and sheen. my 2 cents.