Let's look at some of the new sets for 2017, shall we?
70911 The Penguin Arctic Roller -- 305 Pieces for $29.99. Plenty of useful pieces across multiple colors. Also an affordable licensed set.
70901 Mr. Freeze Ice Attack -- 201 Pieces for $19.99. Tons of useful parts, good colors, good price.
70349 Ruina's Lock & Roller -- 208 Pieces for $19.99. Useful parts and the bad guys for this year's release of Nexo Knights sets use Purple as their accent color.
31062 Robo Explorer -- 205 Pieces for $19.99. Plenty of useful parts -- it is a robot after all -- and lots of Medium Azure.
31058 Mighty Dinosaurs -- 174 Pieces for $14.99. Good parts, good colors, good price.
60152 Sweeper & Excavator -- 299 Pieces for $29.99. Good parts, multiple colors, and it's an affordable City set.
I'll probably do another one of these as soon as Bricklink gets their Parts Lists updated.