First - a quality belt will likely last you your entire life. I have a belt that is a good 17 years old now made by Safe USA that I outgrew and loaned out to a training partner. So paying upwards of $120 for a Safe USA Ultra Belt or even a Bill Morris is well worth the money when you think about it.
I have an Inzer 10MM lever that I wear for training that is pushing 7 years old and it's in good shape. I wanted a single prong belt so I ordered one from Safe USA and sized it a little on the big side and a kid from Plymouth State University wanted it so I sold it to him. I decided to try the inzer 13MM Forever and ordered an XL and again sized it a little too big and gave it to another training partner until he comes up with the $90 to pay me for it. A few months ago he purchased a mass-marketed powerlifting belt off of Ebay for $40, I told him not to do it...it was flimsy as hell, double prong / cheap buckle and roller.
I actually prefer the Safe USA Ultra buckle to the Inzer 13MM forever belt. I am a proponent of owning a single prong belt over a lever...others will disagree and you can pull up the threads and listen to the arguments there. It boils down to everyone's little quirks. For me, adjusting the lever belt is easily done but it's a pain in the ass. If I'm lifting with equipment on, or want different looseness/tightness depending on what lift I'm doing, I can't really do that without taking the screws out of the lever and that chaps my ass.
So, to answer your question -
I'd stay away from the econo belts. Keep your eye on the Powerlifting Watch classifieds as well as Ebay for used Inzer, Bill Morris or Safe USA belts. If the time comes where you have the money, buy a quality belt. Even if you stop training for 10 years, you can always reach in your closet and pull out the belt and it will be ready for you.