And if shipping internationally (due to your location) is a bummer on your funds, do a group order of stuff from the same site with your otaku friends; pool money to pay for the shipping (and sometimes shipping costs go down/away with larger orders!).
In general, I think nendoroids are the more cheaper figures so you can start with that. Or not, you can try those figures in gachapon lmao ;D Other then that, most of the other ones are far from 'cheap'.