Yeah.... Survivor is hard mainly because of the high amount of clintz a person can win. If they didn't have it like they did, then people would be able to earn a ton of clintz and throw the market off balance and make the game even harder for new players.
The best advice I have is to just keep trying at Survivor. Doing 1 run a day won't earn you much but trying maybe, 10 or 20 times is decent.
Also, take advantage of the DTs. 50 clintz for 1 battle in a DT is pretty nice considering how many DTs there are. You figure, 12 a day. If you only play half of them a day, that's 6. At 50 clintz each, that's 300 clintz. If you play 5 days a week, thats 1500 clintz. For a month, thats 6000 clintz. Just from playing 1 battle in a DT and only counting the clintz from DTs.
If you play enough to get credits in a DT, then that's more clintz and also 3 new cards every 20 DTs which can equal a lot of clintz depending on the cards you manage to get.
It's a nice suggestion though. I'd actually like being able to earn a Credit for getting 500+ in a DM.
I agree that it would be nice to have an easier way to earn clintz, but at the same time there's that thing called inflation that we need to worry about. i think if the staff were to put a room like that in the game they would either need to put a cap on the number of games playable in a day, or raise kates tax, which would have people complaining about how kate steals even more of their money. so it would be nice, but it would completely change the game, and not in a good way.
Of course it sounds better to get clintz easy but DM is not there to accumulate clintz fast and easy. The Clitz formats are mostly Survivor and daily.
In daily, you can easily win ~1k (avrg. top100 finish in a daytime daily) every second hour with a solid deck and the endurance to play the full hour. Increase your skill and deckpower and you can aim for the top spotts and earn 3k+.
Survivor is more skilltesting, but also offers a high reward. Once you are able to get double digit runs regulary, it's really worth it.
Adding so much clintz to DM would render daily useless. The split DM = xp, daily = clintz is imho well balanced.
+500 score = credit on the other hand seems nice. It's not overpowered because is really hard to reach and even with a powerfull deck you will probably only reach it once in a while.
Xp can be turned into pfulls which can be sold for at least 60% profit.
i make a few 4* pfulls everyday with the xp i get from playing. If you have the patience to tweak them (get them to over 4850xp) you will get a huge profit off them.