Great cash on cash investment vs huge capital gain

[Kevin Stalker]

I own a rental property that has decent cashflow $430/mo. 

Since I am an agent I covered my closing costs with my commissions. 

Total out of pocket was $9,000. 

Cash on cash return is 57.3% 

I bought the house 1 year ago and since then the market has jumped like crazy.

I purchased the house for $409,990, and right now it is worth $520,000+ in an A rated community/tenants

At what point does the capital gain out weigh a great cash on cash return?

I would like to "cash out" and try to find another investment that brings in more monthly cashflow, even if its at a smaller cash on cash return percentage. 

Any advice?

Thanks,

Kevin