The least expensive......

I wouldn't say it's the least I paid for an LV but I'd say the best deal I ever got was my Denim Mini Pleaty for $475/shipped! The datecode reads 2005, but I don't know what the retail price was then but it's $740 now!
 
erm....

Marshmallow Vernis 4 Key Holder - £60 ($120ish)
Marshmallow Vernis Ludlow - £40 ($80ish)
Petite Monogram Noé - £98 ($198ish)

and most recently for my BF for Christmas a "MONOGRAM PORTE-MONNAIE BILLETS CARTES" for $50.

All of the items have been in great vintage condition - all authenticated in the thread right here on TPF!
 
My least expensive LV handbag would be my Monogram Sophie at $400 USD before tax and my next least expensive handbag would be my Mirroir Papillion in Gold, it was $1360 CAD before tax.

Least expensive accessory is my Monogram Koala Agenda in Rose $375 CAD before tax.

All of my items are from LV stores, i'm scared to buy on Ebay...since i've had one bad experience already!