Thoughts on tiers (Patreon)

Also, I think starting in march I'm going to remove the $10 tier--just going back to one poll for patron choices, one for my choices. I don't know if just being able to suggest for 2 polls is enough of a reward for people in that tier, but I can't afford to do sketches at that rate either. what do you all think? 

Should I find some middle ground tier between the $5-10 tier? ditch the 10 completely? any other suggestions?