It really does pay for itself, I can put 10 dollars in and make 40+ dollars.
Not too long ago I put in $10.00 and made $100.00, i mean, that's pretty great!
Usually every time I get my PayPal payment (from affiliate marketing), I withdraw by the hundreds and any left over cash I will deposit into Linkbucks.
Like if I made $615.00 I would take the $15.00 and put it into LB.
It's like pocket change.
I wont lie, you gotta find what works for you, and what I find converts well, are adult dating sites, like AFF, I promote using the pct program, so I usually expect recurring cash every month, basically I just try to get as many sign up as possible, then let the cash snowball.