When you buy a new bike, how much modification budget is acceptable/expected?

Suspension because I'm way over 200. Mod as parts wear out. Gearing, when the stockers wear, pipe if I smash it or wreck it. Just did plastic and graphics because they were hacked and my bike is 3 years old.

I like to keep my bikes fairly stock looking so all my mods are functionable. They are
Holeshot button
Race numbers
Bar ends
Suspension
Pipe and muffler (more of a want than a need but i like the raw look)

Last year I bought a yz250 which came with a gytr by hgs pipe and muffler and holeshot button so that saved me buying those. Suspension wise i put a heavier rear spring on and that's it. I've had previous yz's revalved and while it was better than stock I don't think it was $800 better. Other than that I replace things when they wear out

Just brought a 2020 yz 250f

Radiator braces
Skid plate
Frame gaurds
Odi lock on grips (havent put on yet waiting for the stockers wear out)
Number board backgrounds
2 twin air filters

Only really protection for the bike start modding it once I've got used to it stock

What does it cost for electrical tape to put on numbers?

Bought a 500EXC a couple weeks ago. So far in addition to the bike I'm into it for...
4 Quarts of oil
1 Extra air filter
3 oil filters
Seat concepts seat
13t front sprocket
Sicass rear fender smaller tail light set up
Yosh slip on silencer
Secret decoder ring black box
KTM factory plastic skid plate
And.... it's at Pro Valve as I type

Also sort of bought at the same time some dual sport boots for the wife, new gloves for her, and a DG pipe for her XT250, gotta spread it around a little.... I'm lucky my wife rides too so she gets it. Plus my last brand new bike was an 05' YZ250 so it's not like we're spending all of our money on bikes, just most of it

I don’t own any stock vehicle. I’m not sure I ever have. Guns either.