The problem is that many casinos fail to publish their loyalty program in sufficient detail. First time players visit the website, click on "promotions", and see only the welcome bonus, and nothing else other than the usual comp points system. This gives the impression that once you have "done" the welcome bonus, that's it as far as bonuses are concerned, time to move on. This means that casinos have to compete by having the best welcome bonus, despite this making them a target for "bonus hunters". Casinos with an uncompetitive welcome bonus, but a fantastic UNPUBLISHED loyalty program, will fail to attract new players so readily, INCLUDING those players who ARE looking to stick around.
RTG casinos seem to have the best regular player offers, but many are rogue. Microgaming casinos tend to keep regular player offers "under wraps", so it is hard for a new player to research what they might expect for being loyal.
Casinos that have the best regular player offers tend to be those who put some thought into it, rather than just fire off the same offer every week.
Jackpot Factory is one that has regular promotions of various kinds, and has an ongoing 10% on all deposits up to varying maxima at each casino. They also run scoreboard wagering contests, lucky draws, special "by invite only" offers, and a few others. They do seem to have lost their touch recently regarding the originality of their events, there were some pretty interesting ones in the past, well worth repeating, even after a little tinkering.
Red Flush offers regular 20% deposit bonuses twice a week, and recently brought in a host of other promos to cover every day of the week. VIPs get larger bonus maxima, but these are still at 20% or 25% of deposits. I got 25% up to 1250 in bonuses for last Wednesday, and again for the weekend. I am, naturally, a VIP
I am hoping for something along the lines of "Birthday Fiesta" or "Slot Survivor" soon
I have great admiration for the style of the player who took out the Birthday Fiesta in the summer