Well Retailer purchase versus Direct, is always somewhat fiddly, things to consider are:
[ul]
[li]Direct: you give more money directly to Elektron, which they hopefully will put to good use.[/li]
[li]Retailer: you support your local business, where you maybe can get hands-on testing with equipment.[/li]
[li]web-retailer: hmm price?[/li]
[/ul]
If speed is your primary concern - find a place which have the item in stock.