The thing with the laser is they're not as accurate overall as a cheshire because they're prone to errors in machining of the barrel which inserts into the eyepiece holder and they occasionally go out of collimation themselves!
The cheshire will give you the best result, but a laser is handy for a quick confirmation that collimation is good. They are quite handy for getting the angle of the secondary right.
Once you get the hang of collimation you'll rarely use a laser.
I used to perform collimation in 3 stages.
1: Quick alignment by eye
2: Laser
3: Cheshire.
Now I can pretty much pick it by eye if it's close and finish off with the cheshire.
And of course, then out under the stars to a star test - if the seeing will allow.
Definitely get yourself a combination cheshire/sight tube.
But each to his or her own