They developer doing the theme park at their township are targeting different market segment. The ppl who are buy the township with theme park are not for their own stay but rather for the investment opportunity - the homestay / air bnb segment to cater for the visiting crowds. By doing so, the developer marketing team have 1 more thing to market to the "investor" potential buyer.

If you ask me, the market segment of the own stay or investment opportunity of short stay should not be mixed together.