Envelopes

I've been thinking about how my greetings cards will be presented and packaged. Through Etsy I have sold some of my Valentines cards. I bought 100 cello bags so that I can keep them in pristine condition, and to go with the cards I bought fuchsia pink envelopes. The envelopes complement the cards well as they all have tones of pink in them. However, I am thinking about my collection as a whole. I'm not sure whether to buy a range of different coloured envelopes, and match the colours with the cards. OR have the same coloured envelopes for all of them. I was thinking brown in particular.  Though, whilst I have been looking around online at buying brown envelopes, it seems that they are more expensive to buy than getting different colours.  

But, if money wasn't part of the equation I need to think whether I would prefer the range to all have the same coloured envelopes or not.