Let me start with:
If you play a mmorpg and dont roleplay at all: You are doing it wrong.
A third of star wars universe is about space combat, flying ships on open space fighting against their enemies, with lasers and force shield, with the force guiding their reflexes. You can ignore the whole roleplay part of the game, but thats a big thing for me (and for bioware), and on top of the voice-over quests, space combat makes me feel immersed to the game (for the duration of the missions, at least).
Maybe you are just not a roleplayer at all and cant get the vibe from it, but to each their own. Now to the topic:
Space Combat? Yes, it is there, but how many actually played it intensivelly, its fun, repetitive as sonic 2, but damn its fun. Upgrading your ship makes it insanely stronger (compared to... no upgrades, obviously).
You go from 20 missiles to 40 just in the first upgrade of your missile launcher, you also upgrade the fire rate of your blasters, shooting twice as many lasers each second.
You get a defensive shield that absorbs damage, and will recharge itself if you are not using the engine for your blasters.
You get armor for your ship, absorbing damage making your ship last much longer to direct damage.
And finally, you get "trinkets", which are abilities that you can use a few times that can greatly turn the battle into your favor (destroying multiple small ship at once? 1-shotting that enemy that would take 5 missiles to take down?).
And you can do space missions while sending your crew to gather materials, the credits you obtain from the mission will pay for their trip. Sometimes you will get ship upgrades from completing the daily space missions, saving you money on upgrading your ship (the first upgrades are about 500-600 credits each, like 5 or 6 pieces, vendors can be found near spaceports).
There is more to space combat than just a rail shooter. We just gotta wait for:
1) Multiplayer missions.
2) More missions.
3) Possibility to visually change our ship.
4) Possibility to get a different ship.