Sure do, but you will need to factor in the time taken to obtain slayerdramon from tickets, some players are just not so lucky (like me).
In fact, having another strong digimon in PVP or PVE will never be a less. It will be an awesome add to a mono-dragon team alongside slayerdramon.
Also there aren't tons of F2P digimons with awesome stats for PVP to begin with, to name a few, susanoomon; shoutmonx7; ladydevimon; slayerdramons are some of the better ones, having an Impreialdramon PM could complete the F2P PVP team for an awesome defence/attack team.
Also, some players collect it just for their collection, and for 400 digimon mission(to get 1500 coins), and also their personal quest in Gotta Catch Them All!