Well,
regarding the Cash Shop, both Mythos Europe and Mythos Global have been very successful :
They did a great job in ignoring customer suggestions, and not adapting to the player's different needs and preferences.
If you have read all the old discussions on Frogster's Mythos Europe forum for example,
you'll know that the Cash Shop is very different from what most people were hoping for:
people were demanding&recommending:* items that do not alter the over-all ingame economy too much - but still with noticeable and useful effects,so that the discrepancy wouldn't be too high between players who wouldn't want to pay2play or couldn't afford it,
and those that would actually want to buy stuff and support the developers this way.
* items that have permanent effects and stay active indefinitely,rather than bound to xx hours/days or xx charges of use
* reasonable, cheap pricing -Mythos is ofc by far not #1 on the market, so maybe they could compete better with cheap pricing,
to make up for what the game obviously lacks in support, content updates & bug fixes
* if there are cash - shop exclusive items, maybe still implement a exchange-method for at least some of those items.it might be helpful to the economy in the long run
ITEMS: comparison Global vs. Russia:the Russian Mythos version is offering interesting and useful items that ours doesn't ..
Here's what you can buy on Russia's Cash Shop :

Some of the items that we also have over here, have slightly different effects..
e.g the automatic dismantle/identify items comes with different amount of charges,
and I believe the luck potion on Russia only gives +100 (need to re-check) while ours does +200 (but it's also way more expensive over here)
PRICING: comparison Global vs. Russiahowever, besides the fact Mythos Global not having as much diversity in their portfolio,
currently, imho the biggest and most apparent issue with the Cash Shop isn't what kind of items you're offering and what they're doing:
The problem right now - unreasonable and exorbitantly , ridiculously high pricings :Why do we suddenly have to pay so much more for the same stuff, even compared to Mythos Europe - which also wasn't cheap even back then ?
Here's what you'd get for your dollars and euros at the moment:
Global:
For 50 US Dollar you get 50000 bones (1 bone = 0,001 Dollar)
Russia:
For 2500 Rubel (~84,5 US Dollar) you get 3000 bones (1bone = ~0,0282 Dollar)
Example: what does it cost to buy 3x Additionally Inventory Extensions for 30days
Global: 1 extension 4900 bones = 3*4900 bones = 14700 bones = 14, 7 Dollar
Russia: 1 extension 44 bones = 3*44 bones = 132 bones = ~ 3, 72 DollarSo, instead it could or should be like this:
* adjust pricing to a reasonable level
* add more items to the shop, similar ones to the Russian ones, e.g
* adjust the effects of what items do (longer duration, more charges, and also permanent items)
for example, the changes could include:
Automatic Dismantling Device: change from xx charges to xx days, add a permanent version to existing ones
Automatic Identify Device: change from xx charges to xx days, add a permanent version to existing ones
Inventory Extension: add permanent version to existing ones, and allow removal of stored items to standard inventory after extension expires
Pricing:
Automatic Dismantling Device: 15 days ~ 1 $ ... 1 month ~1,5 $ ... 1 year ~ 10 $ ... permanent ~ 15 $
Automatic Identify Device: 15 days ~ 1 $ ... 1 month ~1,5 $ ... 1 year ~ 10 $ ... permanent ~ 15 $
1 Inventory Extension: 1 month ~ 1 $ ... 1 year ~ 10 $ ... permanent ~ 10 $