If you really don’t care at all for the aesthetic appeal of whatever surface you’re treating, don’t go with pavers. Go with concrete.
Meaning, if you want one uniform look — with no variety, no decorative elements at all — then concrete will do just fine. If you just need a plain concrete slab, you’ll pay less per square feet than with pavers. The moment you get into any kind of stamped concrete, though, the costs are at least equal — pavers may even be less.