Before parting with your cash for honey gouramis or dwarf gouramis, remember both those species are notoriously short-lived in the average aquarium. Of the two, the honey gourami is simply a demanding animal. It needs warm, preferably soft and acidic water conditions and no aggressive tankmates. Water quality should be excellent. Really, there's fish for the single-species tank, not the community, and certainly not a community with boisterous species like sharks, larger gouramis, angelfish, etc.
Dwarf gouramis are plagued with baterial and/or viral diseases. The fish farms that rear them maintain them in dense populations only by using masses of antibiotics, and once transferred to the retailer's aquarium, and then the home aquarium, they gradually succumb to the infection(s). No reliable cure is known. Talking things over with retailers as well as hobbyists, my impression is at least 50% of dwarf gouramis sold die within the six months, some in the retailer's tanks and some in the hobbyist's tanks. Few see their first birthday. Given these fish should be living around 3-4 years, this is obviously unacceptable.
However, because people still buy them, the retailers still stock them and the fish farms still produce them.
Thick-lipped and banded gouramis may be less brightly coloured than dwarf gouramis, honey gouramis, or the breeds/hybrids like robin gouramis, but they are a darn sight more robust and can be expected to live happy and healthy lives in your aquarium. They don't seem to get the dwarf gourami diseases. They mix well with all community fish and don't seem fussy about water chemistry, putting them well ahead of the honey gourami for the casual aquarist.
Cheers, Neale