Anything related to electronics and photography and supplies I buy at BHPhoto.

Why - because BHPhoto:

- Has excellent support, refund and matching policies.

- Does not charge sales tax (imagine that!) if you use their Payboo card. Actually they officially charge sales tax but it gets immediately refunded so you don't pay it.

- Does not carry counterfeit junk or faked-up crap with fake reviews from shady sellers like Amazon or ebay does.

- Offer free shipping

Smaller e-tailer and retailers cannot compete with BHPhoto refund policies and cannot compete with sales tax compensation policies (thanks government for enforcing sales taxes all over).

Support and guarantee of quality products is more important to me that 2 days shipping.