Buying stuff...

Hello!

Its me again. Would like to buy some dildos. After research i got an idea, that the best is silicone ones. However in our sex shops they are expensive ones - starting like 40eur. I found a lot of them on aliexpress.com. Cost there is starting from 10eur. Is there any difference? Quality?
Cause its funny, but if i would buy all i want from our sexshop my costs would rocket up to 1000eur or more...but if i would use ebay or aliexpress, then cost would be...dont know, at least half less, i think even more.
Where are you buying all stuff for crossdressing(wigs, shoes, dresses etc) - local sex shops, online sex shops or ebay like pages?

Thanks for replies in advance!