With the constant adding of new skins.

Should the skin sales be changed to for skins per round? Or maybe make it so that every third round there's an extra 975 skin comes on sale?

As it current stands there are 361 skins eligible for sale, what makes it possible that every skin come on sale at least once a year if the math was that simple: ~120 sale a year, 120x3 = 360 skins for sale. But since there are skins of varied prices (with most of them concentrated on 975 (168 skins eligble for sale) and with you guys always making it so a sale doesn't have, let's say 3 skins of 975, it makes it so that skins such as Foxfire Ahri haven't been on sale for a year and two months: https://docs.google.com/spreadsheet/ccc?key=0Arh3w_1KfCECdEl3UUUyZ0pFSFBWcmpaTDVfa1lBUGc#gid=0

Now, that's not so bad, but with the years passing by more skins will be added (and most skins added now are either 975 or 1325), so with time it would take much more time for a skin to come on sale, making it so that if you lose a sale very punishing for people who can't afford to expend that much money to buy it out of sale. This year there's been approximately 20 skins released that are eligible for sale (and we're still in month 8), now, let's say you guys release 40 skins every year and 30 of them are eligible for sale. In two years 975 skins would be coming on sale every 20 months or so. Unless you guys make older skins legacy, taking them out of the store, which I don't think it's quite a good move.

So I propose: should there be 4 skin sales per round, or every 3rd round an extra 975 sale? Or something else to fix this scaling problem?