SAVE $30: The Kobo Libra Colour is on sale at Amazon and Kobo for $199.99, down from the list price of $229.99. That's a 13% discount. $199.99 at Kobo $229.99 Save $30 $199.99 at Amazon $229.99 Save $30 Finding the perfect gift for a mom can be a struggle. If she's a reader and doesn't own an e-reader or a model that comes with color, this deal could make for the perfect gift. As of April 30, the Kobo Libra Colour is on sale for $199.99 at both Amazon and Kobo , marked down from the standard price of $229.99. That works out to a 13% discount or a savings of $30. Gone are the days of lugging hardbacked books on vacation. We now have digital e-readers that are perfect for packing along on vacation or bringing along on the commute to work. On the list of Mashable's favorite e-readers , the Kobo Libra Colour earns the top spot as the best color e-reader. Mashable Lead Shopping Reporter Bethany Allard reviewed the Kobo Libra Colour and mentioned that it's the perfect portable size without feeling too small.…