I agree on the timeline comparison between KS and City Telecom. Although, Keck Seng is a safer investment at the moment (may not be the case before the end of July though if the licenses are issued to City Telecom and the two other entrants).
If investors are comfortable parking their money in KS and can leave it there for the next five to ten years, I don't see why not. Dividend payments each year will beat the rate of inflation by a wide margin. Book value will keep increasing (even though it's already twice the market cap from a conservative perspective). Once the Company stars disposing its Macau investments, it'll have even more cash to distribute or plow into other investments.