I purchase online from China, I wish I could shop at a local RC shop but I can't afford to.
I have just received some 1045 propellors I ordered on eBay from China, it was £5.99 with free postage for eight pairs, that is just over 37p per prop.
If it wasn't for cheap Chinese sellers, I wouldn't have been able to build a quad, but I wish I could use a local shop because of the service you get and the knowledge that they have.