It's a toss up. Sometimes I feel like finding a good deal but other times I am willing to splurge on something classic that I can see myself wearing for years to come (a great pair of black heels for example). But, if its something super trendy that'll be out in a few seasons, buying a less expensive version is the way to go in my opinion. What are your rules for saving and splurging?
I live by this rule when shopping: If I am not in LOVE with the item...PUT IT BACK. If you end up regretting not buying it later...then possibly consider going back to purchase it.